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Finding the Fourth Proportional to 618,305.80, 927,546.74 and 191,878.48

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Solution

The fourth proportional to 618,305.80, 927,546.74 and 191,878.48 is: 287,845.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,305.80 : 927,546.74 = 191,878.48 : x
  2. Step 2: Convert to fraction form
    618,305.80/927,546.74 = 191,878.48/x
  3. Step 3: Cross multiply
    618,305.80x = 927,546.74 × 191,878.48
  4. Step 4: Simplify right side
    618,305.80x = 177,976,258,600.16
  5. Step 5: Solve for x
    x = 177,976,258,600.16/618,305.80
  6. Step 6: Final answer
    x = 287,845.04

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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.