Home / 414,265.52-621,396.36-129,976.88

Finding the Fourth Proportional to 414,265.52, 621,396.36 and 129,976.88

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Solution

The fourth proportional to 414,265.52, 621,396.36 and 129,976.88 is: 194,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,265.52 : 621,396.36 = 129,976.88 : x
  2. Step 2: Convert to fraction form
    414,265.52/621,396.36 = 129,976.88/x
  3. Step 3: Cross multiply
    414,265.52x = 621,396.36 × 129,976.88
  4. Step 4: Simplify right side
    414,265.52x = 80,767,160,116.16
  5. Step 5: Solve for x
    x = 80,767,160,116.16/414,265.52
  6. Step 6: Final answer
    x = 194,964.72

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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.