Home / 861,626.57-1,189,044.16-479,743.56

Finding the Fourth Proportional to 861,626.57, 1,189,044.16 and 479,743.56

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Solution

The fourth proportional to 861,626.57, 1,189,044.16 and 479,743.56 is: 662,045.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,626.57 : 1,189,044.16 = 479,743.56 : x
  2. Step 2: Convert to fraction form
    861,626.57/1,189,044.16 = 479,743.56/x
  3. Step 3: Cross multiply
    861,626.57x = 1,189,044.16 × 479,743.56
  4. Step 4: Simplify right side
    861,626.57x = 570,436,277,116.25
  5. Step 5: Solve for x
    x = 570,436,277,116.25/861,626.57
  6. Step 6: Final answer
    x = 662,045.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.