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Finding the Fourth Proportional to 587,728.80, 881,593.20 and 272,800.80

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Solution

The fourth proportional to 587,728.80, 881,593.20 and 272,800.80 is: 409,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,728.80 : 881,593.20 = 272,800.80 : x
  2. Step 2: Convert to fraction form
    587,728.80/881,593.20 = 272,800.80/x
  3. Step 3: Cross multiply
    587,728.80x = 881,593.20 × 272,800.80
  4. Step 4: Simplify right side
    587,728.80x = 240,499,330,234.56
  5. Step 5: Solve for x
    x = 240,499,330,234.56/587,728.80
  6. Step 6: Final answer
    x = 409,201.20

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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.