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Finding the Fourth Proportional to 486,082.80, 729,124.20 and 367,984.80

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Solution

The fourth proportional to 486,082.80, 729,124.20 and 367,984.80 is: 551,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,082.80 : 729,124.20 = 367,984.80 : x
  2. Step 2: Convert to fraction form
    486,082.80/729,124.20 = 367,984.80/x
  3. Step 3: Cross multiply
    486,082.80x = 729,124.20 × 367,984.80
  4. Step 4: Simplify right side
    486,082.80x = 268,306,622,912.16
  5. Step 5: Solve for x
    x = 268,306,622,912.16/486,082.80
  6. Step 6: Final answer
    x = 551,977.20

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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.