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Finding the Fourth Proportional to 392,397.40, 588,752.70 and 179,265.88

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Solution

The fourth proportional to 392,397.40, 588,752.70 and 179,265.88 is: 268,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,397.40 : 588,752.70 = 179,265.88 : x
  2. Step 2: Convert to fraction form
    392,397.40/588,752.70 = 179,265.88/x
  3. Step 3: Cross multiply
    392,397.40x = 588,752.70 × 179,265.88
  4. Step 4: Simplify right side
    392,397.40x = 105,543,270,867.88
  5. Step 5: Solve for x
    x = 105,543,270,867.88/392,397.40
  6. Step 6: Final answer
    x = 268,970.36

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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.