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Finding the Fourth Proportional to 440,446.41, 660,768.06 and 140,944.97

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Solution

The fourth proportional to 440,446.41, 660,768.06 and 140,944.97 is: 211,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,446.41 : 660,768.06 = 140,944.97 : x
  2. Step 2: Convert to fraction form
    440,446.41/660,768.06 = 140,944.97/x
  3. Step 3: Cross multiply
    440,446.41x = 660,768.06 × 140,944.97
  4. Step 4: Simplify right side
    440,446.41x = 93,131,931,089.82
  5. Step 5: Solve for x
    x = 93,131,931,089.82/440,446.41
  6. Step 6: Final answer
    x = 211,448.95

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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.