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Finding the Fourth Proportional to 415,105.39, 622,854.92 and 246,957.90

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Solution

The fourth proportional to 415,105.39, 622,854.92 and 246,957.90 is: 370,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,105.39 : 622,854.92 = 246,957.90 : x
  2. Step 2: Convert to fraction form
    415,105.39/622,854.92 = 246,957.90/x
  3. Step 3: Cross multiply
    415,105.39x = 622,854.92 × 246,957.90
  4. Step 4: Simplify right side
    415,105.39x = 153,818,943,047.87
  5. Step 5: Solve for x
    x = 153,818,943,047.87/415,105.39
  6. Step 6: Final answer
    x = 370,553.95

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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.