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Finding the Fourth Proportional to 666,471.73, 999,749.13 and 267,060.61

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Solution

The fourth proportional to 666,471.73, 999,749.13 and 267,060.61 is: 400,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,471.73 : 999,749.13 = 267,060.61 : x
  2. Step 2: Convert to fraction form
    666,471.73/999,749.13 = 267,060.61/x
  3. Step 3: Cross multiply
    666,471.73x = 999,749.13 × 267,060.61
  4. Step 4: Simplify right side
    666,471.73x = 266,993,612,504.77
  5. Step 5: Solve for x
    x = 266,993,612,504.77/666,471.73
  6. Step 6: Final answer
    x = 400,607.56

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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.