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Finding the Fourth Proportional to 638,904,144.66, 955,834,677 and 483,904,554.54

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Solution

The fourth proportional to 638,904,144.66, 955,834,677 and 483,904,554.54 is: 723,947,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,904,144.66 : 955,834,677 = 483,904,554.54 : x
  2. Step 2: Convert to fraction form
    638,904,144.66/955,834,677 = 483,904,554.54/x
  3. Step 3: Cross multiply
    638,904,144.66x = 955,834,677 × 483,904,554.54
  4. Step 4: Simplify right side
    638,904,144.66x = 462,532,753,587,569,792
  5. Step 5: Solve for x
    x = 462,532,753,587,569,792/638,904,144.66
  6. Step 6: Final answer
    x = 723,947,023.12

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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.