Home / 812,003.68-1,217,451.92-411,872.89

Finding the Fourth Proportional to 812,003.68, 1,217,451.92 and 411,872.89

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Solution

The fourth proportional to 812,003.68, 1,217,451.92 and 411,872.89 is: 617,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,003.68 : 1,217,451.92 = 411,872.89 : x
  2. Step 2: Convert to fraction form
    812,003.68/1,217,451.92 = 411,872.89/x
  3. Step 3: Cross multiply
    812,003.68x = 1,217,451.92 × 411,872.89
  4. Step 4: Simplify right side
    812,003.68x = 501,435,434,639.19
  5. Step 5: Solve for x
    x = 501,435,434,639.19/812,003.68
  6. Step 6: Final answer
    x = 617,528.53

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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.