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Finding the Fourth Proportional to 383,947.20, 575,920.80 and 244,324.80

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Solution

The fourth proportional to 383,947.20, 575,920.80 and 244,324.80 is: 366,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,947.20 : 575,920.80 = 244,324.80 : x
  2. Step 2: Convert to fraction form
    383,947.20/575,920.80 = 244,324.80/x
  3. Step 3: Cross multiply
    383,947.20x = 575,920.80 × 244,324.80
  4. Step 4: Simplify right side
    383,947.20x = 140,711,734,275.84
  5. Step 5: Solve for x
    x = 140,711,734,275.84/383,947.20
  6. Step 6: Final answer
    x = 366,487.20

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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.