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Finding the Fourth Proportional to 392,159.52, 588,239.25 and 274,061.52

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Solution

The fourth proportional to 392,159.52, 588,239.25 and 274,061.52 is: 411,092.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,159.52 : 588,239.25 = 274,061.52 : x
  2. Step 2: Convert to fraction form
    392,159.52/588,239.25 = 274,061.52/x
  3. Step 3: Cross multiply
    392,159.52x = 588,239.25 × 274,061.52
  4. Step 4: Simplify right side
    392,159.52x = 161,213,742,978.66
  5. Step 5: Solve for x
    x = 161,213,742,978.66/392,159.52
  6. Step 6: Final answer
    x = 411,092.26

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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.