Home / 521,520,778,890.40-782,281,168,335.60-501,684,849,853.60

Finding the Fourth Proportional to 521,520,778,890.40, 782,281,168,335.60 and 501,684,849,853.60

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Solution

The fourth proportional to 521,520,778,890.40, 782,281,168,335.60 and 501,684,849,853.60 is: 752,527,274,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,778,890.40 : 782,281,168,335.60 = 501,684,849,853.60 : x
  2. Step 2: Convert to fraction form
    521,520,778,890.40/782,281,168,335.60 = 501,684,849,853.60/x
  3. Step 3: Cross multiply
    521,520,778,890.40x = 782,281,168,335.60 × 501,684,849,853.60
  4. Step 4: Simplify right side
    521,520,778,890.40x = 392,458,610,479,744,241,631,232
  5. Step 5: Solve for x
    x = 392,458,610,479,744,241,631,232/521,520,778,890.40
  6. Step 6: Final answer
    x = 752,527,274,780.40

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Half scale
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Double scale
Find fourth proportional to 521,520,778,891.40, 782,281,168,337.10 and 501,684,849,854.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.