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Finding the Fourth Proportional to 392,327.01, 587,747.75 and 231,922.71

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Solution

The fourth proportional to 392,327.01, 587,747.75 and 231,922.71 is: 347,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,327.01 : 587,747.75 = 231,922.71 : x
  2. Step 2: Convert to fraction form
    392,327.01/587,747.75 = 231,922.71/x
  3. Step 3: Cross multiply
    392,327.01x = 587,747.75 × 231,922.71
  4. Step 4: Simplify right side
    392,327.01x = 136,312,049,816.79
  5. Step 5: Solve for x
    x = 136,312,049,816.79/392,327.01
  6. Step 6: Final answer
    x = 347,444.98

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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.