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Finding the Fourth Proportional to 624,751.92, 861,513.24 and 534,406.95

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Solution

The fourth proportional to 624,751.92, 861,513.24 and 534,406.95 is: 736,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,751.92 : 861,513.24 = 534,406.95 : x
  2. Step 2: Convert to fraction form
    624,751.92/861,513.24 = 534,406.95/x
  3. Step 3: Cross multiply
    624,751.92x = 861,513.24 × 534,406.95
  4. Step 4: Simplify right side
    624,751.92x = 460,398,662,973.02
  5. Step 5: Solve for x
    x = 460,398,662,973.02/624,751.92
  6. Step 6: Final answer
    x = 736,930.37

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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.