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Finding the Fourth Proportional to 414,044.74, 621,066.42 and 129,757.18

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Solution

The fourth proportional to 414,044.74, 621,066.42 and 129,757.18 is: 194,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,044.74 : 621,066.42 = 129,757.18 : x
  2. Step 2: Convert to fraction form
    414,044.74/621,066.42 = 129,757.18/x
  3. Step 3: Cross multiply
    414,044.74x = 621,066.42 × 129,757.18
  4. Step 4: Simplify right side
    414,044.74x = 80,587,827,251.90
  5. Step 5: Solve for x
    x = 80,587,827,251.90/414,044.74
  6. Step 6: Final answer
    x = 194,635.55

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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.