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Finding the Fourth Proportional to 392,679.30, 588,542.76 and 179,154.72

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Solution

The fourth proportional to 392,679.30, 588,542.76 and 179,154.72 is: 268,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,679.30 : 588,542.76 = 179,154.72 : x
  2. Step 2: Convert to fraction form
    392,679.30/588,542.76 = 179,154.72/x
  3. Step 3: Cross multiply
    392,679.30x = 588,542.76 × 179,154.72
  4. Step 4: Simplify right side
    392,679.30x = 105,440,213,375.83
  5. Step 5: Solve for x
    x = 105,440,213,375.83/392,679.30
  6. Step 6: Final answer
    x = 268,514.82

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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.