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Finding the Fourth Proportional to 618,061.64, 927,236.24 and 191,574.84

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Solution

The fourth proportional to 618,061.64, 927,236.24 and 191,574.84 is: 287,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,061.64 : 927,236.24 = 191,574.84 : x
  2. Step 2: Convert to fraction form
    618,061.64/927,236.24 = 191,574.84/x
  3. Step 3: Cross multiply
    618,061.64x = 927,236.24 × 191,574.84
  4. Step 4: Simplify right side
    618,061.64x = 177,635,133,362.33
  5. Step 5: Solve for x
    x = 177,635,133,362.33/618,061.64
  6. Step 6: Final answer
    x = 287,406.83

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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.