Home / 521,567.40-782,351.10-222,385.80

Finding the Fourth Proportional to 521,567.40, 782,351.10 and 222,385.80

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Solution

The fourth proportional to 521,567.40, 782,351.10 and 222,385.80 is: 333,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567.40 : 782,351.10 = 222,385.80 : x
  2. Step 2: Convert to fraction form
    521,567.40/782,351.10 = 222,385.80/x
  3. Step 3: Cross multiply
    521,567.40x = 782,351.10 × 222,385.80
  4. Step 4: Simplify right side
    521,567.40x = 173,983,775,254.38
  5. Step 5: Solve for x
    x = 173,983,775,254.38/521,567.40
  6. Step 6: Final answer
    x = 333,578.70

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Double scale
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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.