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Finding the Fourth Proportional to 629,861,200.40, 944,791,800.60 and 543,696,899.60

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Solution

The fourth proportional to 629,861,200.40, 944,791,800.60 and 543,696,899.60 is: 815,545,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,861,200.40 : 944,791,800.60 = 543,696,899.60 : x
  2. Step 2: Convert to fraction form
    629,861,200.40/944,791,800.60 = 543,696,899.60/x
  3. Step 3: Cross multiply
    629,861,200.40x = 944,791,800.60 × 543,696,899.60
  4. Step 4: Simplify right side
    629,861,200.40x = 513,680,372,753,721,472
  5. Step 5: Solve for x
    x = 513,680,372,753,721,472/629,861,200.40
  6. Step 6: Final answer
    x = 815,545,349.40

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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.