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Finding the Fourth Proportional to 484,508.80, 726,158.40 and 247,945.60

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Solution

The fourth proportional to 484,508.80, 726,158.40 and 247,945.60 is: 371,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,508.80 : 726,158.40 = 247,945.60 : x
  2. Step 2: Convert to fraction form
    484,508.80/726,158.40 = 247,945.60/x
  3. Step 3: Cross multiply
    484,508.80x = 726,158.40 × 247,945.60
  4. Step 4: Simplify right side
    484,508.80x = 180,047,780,183.04
  5. Step 5: Solve for x
    x = 180,047,780,183.04/484,508.80
  6. Step 6: Final answer
    x = 371,608.90

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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.