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Finding the Fourth Proportional to 484,297.20, 726,445.80 and 372,193.20

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Solution

The fourth proportional to 484,297.20, 726,445.80 and 372,193.20 is: 558,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,297.20 : 726,445.80 = 372,193.20 : x
  2. Step 2: Convert to fraction form
    484,297.20/726,445.80 = 372,193.20/x
  3. Step 3: Cross multiply
    484,297.20x = 726,445.80 × 372,193.20
  4. Step 4: Simplify right side
    484,297.20x = 270,378,186,928.56
  5. Step 5: Solve for x
    x = 270,378,186,928.56/484,297.20
  6. Step 6: Final answer
    x = 558,289.80

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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.