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Finding the Fourth Proportional to 256,308.39, 381,831.21 and 244,793.97

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Solution

The fourth proportional to 256,308.39, 381,831.21 and 244,793.97 is: 364,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,308.39 : 381,831.21 = 244,793.97 : x
  2. Step 2: Convert to fraction form
    256,308.39/381,831.21 = 244,793.97/x
  3. Step 3: Cross multiply
    256,308.39x = 381,831.21 × 244,793.97
  4. Step 4: Simplify right side
    256,308.39x = 93,469,977,765.80
  5. Step 5: Solve for x
    x = 93,469,977,765.80/256,308.39
  6. Step 6: Final answer
    x = 364,677.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.