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Finding the Fourth Proportional to 440,296.72, 660,529.80 and 187,572.48

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Solution

The fourth proportional to 440,296.72, 660,529.80 and 187,572.48 is: 281,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,296.72 : 660,529.80 = 187,572.48 : x
  2. Step 2: Convert to fraction form
    440,296.72/660,529.80 = 187,572.48/x
  3. Step 3: Cross multiply
    440,296.72x = 660,529.80 × 187,572.48
  4. Step 4: Simplify right side
    440,296.72x = 123,897,212,699.90
  5. Step 5: Solve for x
    x = 123,897,212,699.90/440,296.72
  6. Step 6: Final answer
    x = 281,394.81

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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.