Home / 985,191.21-1,359,640.89-549,745.47

Finding the Fourth Proportional to 985,191.21, 1,359,640.89 and 549,745.47

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Solution

The fourth proportional to 985,191.21, 1,359,640.89 and 549,745.47 is: 758,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,191.21 : 1,359,640.89 = 549,745.47 : x
  2. Step 2: Convert to fraction form
    985,191.21/1,359,640.89 = 549,745.47/x
  3. Step 3: Cross multiply
    985,191.21x = 1,359,640.89 × 549,745.47
  4. Step 4: Simplify right side
    985,191.21x = 747,456,420,104.27
  5. Step 5: Solve for x
    x = 747,456,420,104.27/985,191.21
  6. Step 6: Final answer
    x = 758,691.73

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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.