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Finding the Fourth Proportional to 624,443.31, 861,734.34 and 337,963.32

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Solution

The fourth proportional to 624,443.31, 861,734.34 and 337,963.32 is: 466,390.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,443.31 : 861,734.34 = 337,963.32 : x
  2. Step 2: Convert to fraction form
    624,443.31/861,734.34 = 337,963.32/x
  3. Step 3: Cross multiply
    624,443.31x = 861,734.34 × 337,963.32
  4. Step 4: Simplify right side
    624,443.31x = 291,234,598,504.41
  5. Step 5: Solve for x
    x = 291,234,598,504.41/624,443.31
  6. Step 6: Final answer
    x = 466,390.77

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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.