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Finding the Fourth Proportional to 440,279.10, 660,250.98 and 187,399.98

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Solution

The fourth proportional to 440,279.10, 660,250.98 and 187,399.98 is: 281,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,279.10 : 660,250.98 = 187,399.98 : x
  2. Step 2: Convert to fraction form
    440,279.10/660,250.98 = 187,399.98/x
  3. Step 3: Cross multiply
    440,279.10x = 660,250.98 × 187,399.98
  4. Step 4: Simplify right side
    440,279.10x = 123,731,020,446.98
  5. Step 5: Solve for x
    x = 123,731,020,446.98/440,279.10
  6. Step 6: Final answer
    x = 281,028.60

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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.