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Finding the Fourth Proportional to 624,151.89, 861,335.82 and 337,678.11

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Solution

The fourth proportional to 624,151.89, 861,335.82 and 337,678.11 is: 465,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,151.89 : 861,335.82 = 337,678.11 : x
  2. Step 2: Convert to fraction form
    624,151.89/861,335.82 = 337,678.11/x
  3. Step 3: Cross multiply
    624,151.89x = 861,335.82 × 337,678.11
  4. Step 4: Simplify right side
    624,151.89x = 290,854,251,772.90
  5. Step 5: Solve for x
    x = 290,854,251,772.90/624,151.89
  6. Step 6: Final answer
    x = 465,999.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.