Home / 519,540.30-779,310.45-145,514.70

Finding the Fourth Proportional to 519,540.30, 779,310.45 and 145,514.70

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Solution

The fourth proportional to 519,540.30, 779,310.45 and 145,514.70 is: 218,272.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,540.30 : 779,310.45 = 145,514.70 : x
  2. Step 2: Convert to fraction form
    519,540.30/779,310.45 = 145,514.70/x
  3. Step 3: Cross multiply
    519,540.30x = 779,310.45 × 145,514.70
  4. Step 4: Simplify right side
    519,540.30x = 113,401,126,338.62
  5. Step 5: Solve for x
    x = 113,401,126,338.62/519,540.30
  6. Step 6: Final answer
    x = 218,272.05

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Similar ratio
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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.