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Finding the Fourth Proportional to 483,274.80, 724,912.20 and 306,565.20

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Solution

The fourth proportional to 483,274.80, 724,912.20 and 306,565.20 is: 459,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,274.80 : 724,912.20 = 306,565.20 : x
  2. Step 2: Convert to fraction form
    483,274.80/724,912.20 = 306,565.20/x
  3. Step 3: Cross multiply
    483,274.80x = 724,912.20 × 306,565.20
  4. Step 4: Simplify right side
    483,274.80x = 222,232,853,575.44
  5. Step 5: Solve for x
    x = 222,232,853,575.44/483,274.80
  6. Step 6: Final answer
    x = 459,847.80

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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.