Home / 1,891,425.75-2,607,118.39-1,279,355.30

Finding the Fourth Proportional to 1,891,425.75, 2,607,118.39 and 1,279,355.30

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Solution

The fourth proportional to 1,891,425.75, 2,607,118.39 and 1,279,355.30 is: 1,763,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,425.75 : 2,607,118.39 = 1,279,355.30 : x
  2. Step 2: Convert to fraction form
    1,891,425.75/2,607,118.39 = 1,279,355.30/x
  3. Step 3: Cross multiply
    1,891,425.75x = 2,607,118.39 × 1,279,355.30
  4. Step 4: Simplify right side
    1,891,425.75x = 3,335,430,729,973.97
  5. Step 5: Solve for x
    x = 3,335,430,729,973.97/1,891,425.75
  6. Step 6: Final answer
    x = 1,763,447.88

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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.