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Finding the Fourth Proportional to 394,691.54, 544,571.39 and 231,260.24

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Solution

The fourth proportional to 394,691.54, 544,571.39 and 231,260.24 is: 319,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,691.54 : 544,571.39 = 231,260.24 : x
  2. Step 2: Convert to fraction form
    394,691.54/544,571.39 = 231,260.24/x
  3. Step 3: Cross multiply
    394,691.54x = 544,571.39 × 231,260.24
  4. Step 4: Simplify right side
    394,691.54x = 125,937,708,133.89
  5. Step 5: Solve for x
    x = 125,937,708,133.89/394,691.54
  6. Step 6: Final answer
    x = 319,078.82

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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.