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Finding the Fourth Proportional to 331,451.20, 496,399.20 and 225,697.60

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Solution

The fourth proportional to 331,451.20, 496,399.20 and 225,697.60 is: 338,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,451.20 : 496,399.20 = 225,697.60 : x
  2. Step 2: Convert to fraction form
    331,451.20/496,399.20 = 225,697.60/x
  3. Step 3: Cross multiply
    331,451.20x = 496,399.20 × 225,697.60
  4. Step 4: Simplify right side
    331,451.20x = 112,036,108,081.92
  5. Step 5: Solve for x
    x = 112,036,108,081.92/331,451.20
  6. Step 6: Final answer
    x = 338,016.90

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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.