Home / 861,211.20-1,188,682.39-667,235.24

Finding the Fourth Proportional to 861,211.20, 1,188,682.39 and 667,235.24

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Solution

The fourth proportional to 861,211.20, 1,188,682.39 and 667,235.24 is: 920,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,211.20 : 1,188,682.39 = 667,235.24 : x
  2. Step 2: Convert to fraction form
    861,211.20/1,188,682.39 = 667,235.24/x
  3. Step 3: Cross multiply
    861,211.20x = 1,188,682.39 × 667,235.24
  4. Step 4: Simplify right side
    861,211.20x = 793,130,779,123.62
  5. Step 5: Solve for x
    x = 793,130,779,123.62/861,211.20
  6. Step 6: Final answer
    x = 920,948.05

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Double scale
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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.