Home / 1,225,515.20-1,691,170.38-681,635.60

Finding the Fourth Proportional to 1,225,515.20, 1,691,170.38 and 681,635.60

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Solution

The fourth proportional to 1,225,515.20, 1,691,170.38 and 681,635.60 is: 940,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,515.20 : 1,691,170.38 = 681,635.60 : x
  2. Step 2: Convert to fraction form
    1,225,515.20/1,691,170.38 = 681,635.60/x
  3. Step 3: Cross multiply
    1,225,515.20x = 1,691,170.38 × 681,635.60
  4. Step 4: Simplify right side
    1,225,515.20x = 1,152,761,936,673.53
  5. Step 5: Solve for x
    x = 1,152,761,936,673.53/1,225,515.20
  6. Step 6: Final answer
    x = 940,634.55

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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.