Home / 681,840.17-1,022,760.22-647,745.76

Finding the Fourth Proportional to 681,840.17, 1,022,760.22 and 647,745.76

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Solution

The fourth proportional to 681,840.17, 1,022,760.22 and 647,745.76 is: 971,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,840.17 : 1,022,760.22 = 647,745.76 : x
  2. Step 2: Convert to fraction form
    681,840.17/1,022,760.22 = 647,745.76/x
  3. Step 3: Cross multiply
    681,840.17x = 1,022,760.22 × 647,745.76
  4. Step 4: Simplify right side
    681,840.17x = 662,488,591,122.25
  5. Step 5: Solve for x
    x = 662,488,591,122.25/681,840.17
  6. Step 6: Final answer
    x = 971,618.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.