Home / 862,163.57-1,293,245.36-263,127.87

Finding the Fourth Proportional to 862,163.57, 1,293,245.36 and 263,127.87

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Solution

The fourth proportional to 862,163.57, 1,293,245.36 and 263,127.87 is: 394,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,163.57 : 1,293,245.36 = 263,127.87 : x
  2. Step 2: Convert to fraction form
    862,163.57/1,293,245.36 = 263,127.87/x
  3. Step 3: Cross multiply
    862,163.57x = 1,293,245.36 × 263,127.87
  4. Step 4: Simplify right side
    862,163.57x = 340,288,896,964.18
  5. Step 5: Solve for x
    x = 340,288,896,964.18/862,163.57
  6. Step 6: Final answer
    x = 394,691.81

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Double scale
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Similar ratio
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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.