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Finding the Fourth Proportional to 398,793.33, 550,321.38 and 237,564.87

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Solution

The fourth proportional to 398,793.33, 550,321.38 and 237,564.87 is: 327,831.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,793.33 : 550,321.38 = 237,564.87 : x
  2. Step 2: Convert to fraction form
    398,793.33/550,321.38 = 237,564.87/x
  3. Step 3: Cross multiply
    398,793.33x = 550,321.38 × 237,564.87
  4. Step 4: Simplify right side
    398,793.33x = 130,737,027,097.92
  5. Step 5: Solve for x
    x = 130,737,027,097.92/398,793.33
  6. Step 6: Final answer
    x = 327,831.53

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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.