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Finding the Fourth Proportional to 618,197.88, 927,686.34 and 263,211.24

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Solution

The fourth proportional to 618,197.88, 927,686.34 and 263,211.24 is: 394,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,197.88 : 927,686.34 = 263,211.24 : x
  2. Step 2: Convert to fraction form
    618,197.88/927,686.34 = 263,211.24/x
  3. Step 3: Cross multiply
    618,197.88x = 927,686.34 × 263,211.24
  4. Step 4: Simplify right side
    618,197.88x = 244,177,471,882.46
  5. Step 5: Solve for x
    x = 244,177,471,882.46/618,197.88
  6. Step 6: Final answer
    x = 394,982.71

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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.