Home / 886,145.90-1,329,218.85-512,897.90

Finding the Fourth Proportional to 886,145.90, 1,329,218.85 and 512,897.90

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Solution

The fourth proportional to 886,145.90, 1,329,218.85 and 512,897.90 is: 769,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,145.90 : 1,329,218.85 = 512,897.90 : x
  2. Step 2: Convert to fraction form
    886,145.90/1,329,218.85 = 512,897.90/x
  3. Step 3: Cross multiply
    886,145.90x = 1,329,218.85 × 512,897.90
  4. Step 4: Simplify right side
    886,145.90x = 681,753,556,805.42
  5. Step 5: Solve for x
    x = 681,753,556,805.42/886,145.90
  6. Step 6: Final answer
    x = 769,346.85

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Double scale
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Similar ratio
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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.