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Finding the Fourth Proportional to 392,653.58, 588,504.20 and 179,128.92

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Solution

The fourth proportional to 392,653.58, 588,504.20 and 179,128.92 is: 268,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,653.58 : 588,504.20 = 179,128.92 : x
  2. Step 2: Convert to fraction form
    392,653.58/588,504.20 = 179,128.92/x
  3. Step 3: Cross multiply
    392,653.58x = 588,504.20 × 179,128.92
  4. Step 4: Simplify right side
    392,653.58x = 105,418,121,761.46
  5. Step 5: Solve for x
    x = 105,418,121,761.46/392,653.58
  6. Step 6: Final answer
    x = 268,476.15

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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.