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Finding the Fourth Proportional to 624,386.64, 861,655.68 and 337,906.64

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Solution

The fourth proportional to 624,386.64, 861,655.68 and 337,906.64 is: 466,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,386.64 : 861,655.68 = 337,906.64 : x
  2. Step 2: Convert to fraction form
    624,386.64/861,655.68 = 337,906.64/x
  3. Step 3: Cross multiply
    624,386.64x = 861,655.68 × 337,906.64
  4. Step 4: Simplify right side
    624,386.64x = 291,159,175,665.72
  5. Step 5: Solve for x
    x = 291,159,175,665.72/624,386.64
  6. Step 6: Final answer
    x = 466,312.31

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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.