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Finding the Fourth Proportional to 327,230.80, 490,846.20 and 268,133.20

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Solution

The fourth proportional to 327,230.80, 490,846.20 and 268,133.20 is: 402,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,230.80 : 490,846.20 = 268,133.20 : x
  2. Step 2: Convert to fraction form
    327,230.80/490,846.20 = 268,133.20/x
  3. Step 3: Cross multiply
    327,230.80x = 490,846.20 × 268,133.20
  4. Step 4: Simplify right side
    327,230.80x = 131,612,162,313.84
  5. Step 5: Solve for x
    x = 131,612,162,313.84/327,230.80
  6. Step 6: Final answer
    x = 402,199.80

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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.