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Finding the Fourth Proportional to 618,306, 927,591.30 and 191,832.66

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Solution

The fourth proportional to 618,306, 927,591.30 and 191,832.66 is: 287,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,306 : 927,591.30 = 191,832.66 : x
  2. Step 2: Convert to fraction form
    618,306/927,591.30 = 191,832.66/x
  3. Step 3: Cross multiply
    618,306x = 927,591.30 × 191,832.66
  4. Step 4: Simplify right side
    618,306x = 177,942,306,471.86
  5. Step 5: Solve for x
    x = 177,942,306,471.86/618,306
  6. Step 6: Final answer
    x = 287,790.04

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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.