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Finding the Fourth Proportional to 327,187.20, 490,813.20 and 113,922.30

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Solution

The fourth proportional to 327,187.20, 490,813.20 and 113,922.30 is: 170,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,187.20 : 490,813.20 = 113,922.30 : x
  2. Step 2: Convert to fraction form
    327,187.20/490,813.20 = 113,922.30/x
  3. Step 3: Cross multiply
    327,187.20x = 490,813.20 × 113,922.30
  4. Step 4: Simplify right side
    327,187.20x = 55,914,568,614.36
  5. Step 5: Solve for x
    x = 55,914,568,614.36/327,187.20
  6. Step 6: Final answer
    x = 170,894.73

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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.