Home / 263,016.72-394,546.68-85,519.80

Finding the Fourth Proportional to 263,016.72, 394,546.68 and 85,519.80

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Solution

The fourth proportional to 263,016.72, 394,546.68 and 85,519.80 is: 128,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,016.72 : 394,546.68 = 85,519.80 : x
  2. Step 2: Convert to fraction form
    263,016.72/394,546.68 = 85,519.80/x
  3. Step 3: Cross multiply
    263,016.72x = 394,546.68 × 85,519.80
  4. Step 4: Simplify right side
    263,016.72x = 33,741,553,164.26
  5. Step 5: Solve for x
    x = 33,741,553,164.26/263,016.72
  6. Step 6: Final answer
    x = 128,286.72

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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.