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Finding the Fourth Proportional to 408,064.52, 612,200.46 and 239,727.17

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Solution

The fourth proportional to 408,064.52, 612,200.46 and 239,727.17 is: 359,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,064.52 : 612,200.46 = 239,727.17 : x
  2. Step 2: Convert to fraction form
    408,064.52/612,200.46 = 239,727.17/x
  3. Step 3: Cross multiply
    408,064.52x = 612,200.46 × 239,727.17
  4. Step 4: Simplify right side
    408,064.52x = 146,761,086,177.98
  5. Step 5: Solve for x
    x = 146,761,086,177.98/408,064.52
  6. Step 6: Final answer
    x = 359,651.67

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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.