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Finding the Fourth Proportional to 440,245.65, 660,098.60 and 187,382.15

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Solution

The fourth proportional to 440,245.65, 660,098.60 and 187,382.15 is: 280,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,245.65 : 660,098.60 = 187,382.15 : x
  2. Step 2: Convert to fraction form
    440,245.65/660,098.60 = 187,382.15/x
  3. Step 3: Cross multiply
    440,245.65x = 660,098.60 × 187,382.15
  4. Step 4: Simplify right side
    440,245.65x = 123,690,693,820.64
  5. Step 5: Solve for x
    x = 123,690,693,820.64/440,245.65
  6. Step 6: Final answer
    x = 280,958.35

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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.