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Finding the Fourth Proportional to 440,245.35, 660,098.15 and 187,381.85

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Solution

The fourth proportional to 440,245.35, 660,098.15 and 187,381.85 is: 280,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,245.35 : 660,098.15 = 187,381.85 : x
  2. Step 2: Convert to fraction form
    440,245.35/660,098.15 = 187,381.85/x
  3. Step 3: Cross multiply
    440,245.35x = 660,098.15 × 187,381.85
  4. Step 4: Simplify right side
    440,245.35x = 123,690,408,993.86
  5. Step 5: Solve for x
    x = 123,690,408,993.86/440,245.35
  6. Step 6: Final answer
    x = 280,957.90

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1.5x scale

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.