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Finding the Fourth Proportional to 629,861,230.60, 944,791,845.90 and 572,418,363.40

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Solution

The fourth proportional to 629,861,230.60, 944,791,845.90 and 572,418,363.40 is: 858,627,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,861,230.60 : 944,791,845.90 = 572,418,363.40 : x
  2. Step 2: Convert to fraction form
    629,861,230.60/944,791,845.90 = 572,418,363.40/x
  3. Step 3: Cross multiply
    629,861,230.60x = 944,791,845.90 × 572,418,363.40
  4. Step 4: Simplify right side
    629,861,230.60x = 540,816,202,183,742,976
  5. Step 5: Solve for x
    x = 540,816,202,183,742,976/629,861,230.60
  6. Step 6: Final answer
    x = 858,627,545.10

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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.