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Finding the Fourth Proportional to 392,396.40, 588,751.20 and 179,264.88

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Solution

The fourth proportional to 392,396.40, 588,751.20 and 179,264.88 is: 268,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,396.40 : 588,751.20 = 179,264.88 : x
  2. Step 2: Convert to fraction form
    392,396.40/588,751.20 = 179,264.88/x
  3. Step 3: Cross multiply
    392,396.40x = 588,751.20 × 179,264.88
  4. Step 4: Simplify right side
    392,396.40x = 105,542,413,217.86
  5. Step 5: Solve for x
    x = 105,542,413,217.86/392,396.40
  6. Step 6: Final answer
    x = 268,968.86

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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.