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Finding the Fourth Proportional to 360,881.92, 541,377.54 and 261,789.85

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Solution

The fourth proportional to 360,881.92, 541,377.54 and 261,789.85 is: 392,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,881.92 : 541,377.54 = 261,789.85 : x
  2. Step 2: Convert to fraction form
    360,881.92/541,377.54 = 261,789.85/x
  3. Step 3: Cross multiply
    360,881.92x = 541,377.54 × 261,789.85
  4. Step 4: Simplify right side
    360,881.92x = 141,727,144,989.97
  5. Step 5: Solve for x
    x = 141,727,144,989.97/360,881.92
  6. Step 6: Final answer
    x = 392,724.43

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1.5x scale

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.