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Finding the Fourth Proportional to 392,379.20, 588,574.20 and 111,896.48

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Solution

The fourth proportional to 392,379.20, 588,574.20 and 111,896.48 is: 167,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,379.20 : 588,574.20 = 111,896.48 : x
  2. Step 2: Convert to fraction form
    392,379.20/588,574.20 = 111,896.48/x
  3. Step 3: Cross multiply
    392,379.20x = 588,574.20 × 111,896.48
  4. Step 4: Simplify right side
    392,379.20x = 65,859,381,198.82
  5. Step 5: Solve for x
    x = 65,859,381,198.82/392,379.20
  6. Step 6: Final answer
    x = 167,846.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.