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Finding the Fourth Proportional to 327,195.54, 490,291.95 and 220,183.56

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Solution

The fourth proportional to 327,195.54, 490,291.95 and 220,183.56 is: 329,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,195.54 : 490,291.95 = 220,183.56 : x
  2. Step 2: Convert to fraction form
    327,195.54/490,291.95 = 220,183.56/x
  3. Step 3: Cross multiply
    327,195.54x = 490,291.95 × 220,183.56
  4. Step 4: Simplify right side
    327,195.54x = 107,954,226,990.34
  5. Step 5: Solve for x
    x = 107,954,226,990.34/327,195.54
  6. Step 6: Final answer
    x = 329,937.95

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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.