Home / 1,987,528.78-2,744,494.75-1,923,257.63

Finding the Fourth Proportional to 1,987,528.78, 2,744,494.75 and 1,923,257.63

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Solution

The fourth proportional to 1,987,528.78, 2,744,494.75 and 1,923,257.63 is: 2,655,745.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,528.78 : 2,744,494.75 = 1,923,257.63 : x
  2. Step 2: Convert to fraction form
    1,987,528.78/2,744,494.75 = 1,923,257.63/x
  3. Step 3: Cross multiply
    1,987,528.78x = 2,744,494.75 × 1,923,257.63
  4. Step 4: Simplify right side
    1,987,528.78x = 5,278,370,468,432.44
  5. Step 5: Solve for x
    x = 5,278,370,468,432.44/1,987,528.78
  6. Step 6: Final answer
    x = 2,655,745.43

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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.