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Finding the Fourth Proportional to 392,591.97, 588,943.04 and 192,920.22

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Solution

The fourth proportional to 392,591.97, 588,943.04 and 192,920.22 is: 289,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,591.97 : 588,943.04 = 192,920.22 : x
  2. Step 2: Convert to fraction form
    392,591.97/588,943.04 = 192,920.22/x
  3. Step 3: Cross multiply
    392,591.97x = 588,943.04 × 192,920.22
  4. Step 4: Simplify right side
    392,591.97x = 113,619,019,879.67
  5. Step 5: Solve for x
    x = 113,619,019,879.67/392,591.97
  6. Step 6: Final answer
    x = 289,407.40

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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.