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Finding the Fourth Proportional to 484,458.80, 726,688.20 and 247,722.80

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Solution

The fourth proportional to 484,458.80, 726,688.20 and 247,722.80 is: 371,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,458.80 : 726,688.20 = 247,722.80 : x
  2. Step 2: Convert to fraction form
    484,458.80/726,688.20 = 247,722.80/x
  3. Step 3: Cross multiply
    484,458.80x = 726,688.20 × 247,722.80
  4. Step 4: Simplify right side
    484,458.80x = 180,017,235,630.96
  5. Step 5: Solve for x
    x = 180,017,235,630.96/484,458.80
  6. Step 6: Final answer
    x = 371,584.20

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Similar ratio
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1.5x scale

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.