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Finding the Fourth Proportional to 394,251.92, 544,067.87 and 212,963.85

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Solution

The fourth proportional to 394,251.92, 544,067.87 and 212,963.85 is: 293,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,251.92 : 544,067.87 = 212,963.85 : x
  2. Step 2: Convert to fraction form
    394,251.92/544,067.87 = 212,963.85/x
  3. Step 3: Cross multiply
    394,251.92x = 544,067.87 × 212,963.85
  4. Step 4: Simplify right side
    394,251.92x = 115,866,787,191.68
  5. Step 5: Solve for x
    x = 115,866,787,191.68/394,251.92
  6. Step 6: Final answer
    x = 293,890.23

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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.