Home / 1,224,114.38-1,689,170.39-680,215.71

Finding the Fourth Proportional to 1,224,114.38, 1,689,170.39 and 680,215.71

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Solution

The fourth proportional to 1,224,114.38, 1,689,170.39 and 680,215.71 is: 938,637.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,114.38 : 1,689,170.39 = 680,215.71 : x
  2. Step 2: Convert to fraction form
    1,224,114.38/1,689,170.39 = 680,215.71/x
  3. Step 3: Cross multiply
    1,224,114.38x = 1,689,170.39 × 680,215.71
  4. Step 4: Simplify right side
    1,224,114.38x = 1,149,000,232,743.75
  5. Step 5: Solve for x
    x = 1,149,000,232,743.75/1,224,114.38
  6. Step 6: Final answer
    x = 938,637.97

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Double scale
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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.