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Finding the Fourth Proportional to 618,163.85, 927,378.94 and 191,691.10

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Solution

The fourth proportional to 618,163.85, 927,378.94 and 191,691.10 is: 287,577.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,163.85 : 927,378.94 = 191,691.10 : x
  2. Step 2: Convert to fraction form
    618,163.85/927,378.94 = 191,691.10/x
  3. Step 3: Cross multiply
    618,163.85x = 927,378.94 × 191,691.10
  4. Step 4: Simplify right side
    618,163.85x = 177,770,289,125.43
  5. Step 5: Solve for x
    x = 177,770,289,125.43/618,163.85
  6. Step 6: Final answer
    x = 287,577.94

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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.