Home / 1,253,105.43-1,729,239.16-680,133.33

Finding the Fourth Proportional to 1,253,105.43, 1,729,239.16 and 680,133.33

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Solution

The fourth proportional to 1,253,105.43, 1,729,239.16 and 680,133.33 is: 938,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,105.43 : 1,729,239.16 = 680,133.33 : x
  2. Step 2: Convert to fraction form
    1,253,105.43/1,729,239.16 = 680,133.33/x
  3. Step 3: Cross multiply
    1,253,105.43x = 1,729,239.16 × 680,133.33
  4. Step 4: Simplify right side
    1,253,105.43x = 1,176,113,188,257.20
  5. Step 5: Solve for x
    x = 1,176,113,188,257.20/1,253,105.43
  6. Step 6: Final answer
    x = 938,558.85

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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.