Home / 1,253,119.92-1,729,259.18-680,147.79

Finding the Fourth Proportional to 1,253,119.92, 1,729,259.18 and 680,147.79

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Solution

The fourth proportional to 1,253,119.92, 1,729,259.18 and 680,147.79 is: 938,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,119.92 : 1,729,259.18 = 680,147.79 : x
  2. Step 2: Convert to fraction form
    1,253,119.92/1,729,259.18 = 680,147.79/x
  3. Step 3: Cross multiply
    1,253,119.92x = 1,729,259.18 × 680,147.79
  4. Step 4: Simplify right side
    1,253,119.92x = 1,176,151,802,279.31
  5. Step 5: Solve for x
    x = 1,176,151,802,279.31/1,253,119.92
  6. Step 6: Final answer
    x = 938,578.81

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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.