Home / 861,188.55-1,188,651.15-667,212.59

Finding the Fourth Proportional to 861,188.55, 1,188,651.15 and 667,212.59

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Solution

The fourth proportional to 861,188.55, 1,188,651.15 and 667,212.59 is: 920,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,188.55 : 1,188,651.15 = 667,212.59 : x
  2. Step 2: Convert to fraction form
    861,188.55/1,188,651.15 = 667,212.59/x
  3. Step 3: Cross multiply
    861,188.55x = 1,188,651.15 × 667,212.59
  4. Step 4: Simplify right side
    861,188.55x = 793,083,006,454.72
  5. Step 5: Solve for x
    x = 793,083,006,454.72/861,188.55
  6. Step 6: Final answer
    x = 920,916.80

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1.5x scale

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.