Home / 521,520,769,506.85-782,281,154,260.30-500,950,176,431.65

Finding the Fourth Proportional to 521,520,769,506.85, 782,281,154,260.30 and 500,950,176,431.65

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Solution

The fourth proportional to 521,520,769,506.85, 782,281,154,260.30 and 500,950,176,431.65 is: 751,425,264,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,769,506.85 : 782,281,154,260.30 = 500,950,176,431.65 : x
  2. Step 2: Convert to fraction form
    521,520,769,506.85/782,281,154,260.30 = 500,950,176,431.65/x
  3. Step 3: Cross multiply
    521,520,769,506.85x = 782,281,154,260.30 × 500,950,176,431.65
  4. Step 4: Simplify right side
    521,520,769,506.85x = 391,883,882,245,852,112,093,184
  5. Step 5: Solve for x
    x = 391,883,882,245,852,112,093,184/521,520,769,506.85
  6. Step 6: Final answer
    x = 751,425,264,647.50

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Double scale
Find fourth proportional to 521,520,769,507.85, 782,281,154,261.80 and 500,950,176,432.65
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.