Home / 414,263.52-621,393.36-129,974.88

Finding the Fourth Proportional to 414,263.52, 621,393.36 and 129,974.88

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Solution

The fourth proportional to 414,263.52, 621,393.36 and 129,974.88 is: 194,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,263.52 : 621,393.36 = 129,974.88 : x
  2. Step 2: Convert to fraction form
    414,263.52/621,393.36 = 129,974.88/x
  3. Step 3: Cross multiply
    414,263.52x = 621,393.36 × 129,974.88
  4. Step 4: Simplify right side
    414,263.52x = 80,765,527,398.80
  5. Step 5: Solve for x
    x = 80,765,527,398.80/414,263.52
  6. Step 6: Final answer
    x = 194,961.72

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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.