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Finding the Fourth Proportional to 629,857,458.40, 944,786,187.60 and 538,024,453.60

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Solution

The fourth proportional to 629,857,458.40, 944,786,187.60 and 538,024,453.60 is: 807,036,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,458.40 : 944,786,187.60 = 538,024,453.60 : x
  2. Step 2: Convert to fraction form
    629,857,458.40/944,786,187.60 = 538,024,453.60/x
  3. Step 3: Cross multiply
    629,857,458.40x = 944,786,187.60 × 538,024,453.60
  4. Step 4: Simplify right side
    629,857,458.40x = 508,318,072,352,317,120
  5. Step 5: Solve for x
    x = 508,318,072,352,317,120/629,857,458.40
  6. Step 6: Final answer
    x = 807,036,680.40

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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.