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Finding the Fourth Proportional to 1,948,764.21, 2,687,960.22 and 1,270,619.25

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Solution

The fourth proportional to 1,948,764.21, 2,687,960.22 and 1,270,619.25 is: 1,752,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,764.21 : 2,687,960.22 = 1,270,619.25 : x
  2. Step 2: Convert to fraction form
    1,948,764.21/2,687,960.22 = 1,270,619.25/x
  3. Step 3: Cross multiply
    1,948,764.21x = 2,687,960.22 × 1,270,619.25
  4. Step 4: Simplify right side
    1,948,764.21x = 3,415,373,998,766.24
  5. Step 5: Solve for x
    x = 3,415,373,998,766.24/1,948,764.21
  6. Step 6: Final answer
    x = 1,752,584.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.