Home / 812,003.36-1,217,451.46-411,872.58

Finding the Fourth Proportional to 812,003.36, 1,217,451.46 and 411,872.58

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Solution

The fourth proportional to 812,003.36, 1,217,451.46 and 411,872.58 is: 617,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,003.36 : 1,217,451.46 = 411,872.58 : x
  2. Step 2: Convert to fraction form
    812,003.36/1,217,451.46 = 411,872.58/x
  3. Step 3: Cross multiply
    812,003.36x = 1,217,451.46 × 411,872.58
  4. Step 4: Simplify right side
    812,003.36x = 501,434,873,854.97
  5. Step 5: Solve for x
    x = 501,434,873,854.97/812,003.36
  6. Step 6: Final answer
    x = 617,528.08

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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.