Home / 439,934.20-659,901.30-327,959.80

Finding the Fourth Proportional to 439,934.20, 659,901.30 and 327,959.80

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Solution

The fourth proportional to 439,934.20, 659,901.30 and 327,959.80 is: 491,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,934.20 : 659,901.30 = 327,959.80 : x
  2. Step 2: Convert to fraction form
    439,934.20/659,901.30 = 327,959.80/x
  3. Step 3: Cross multiply
    439,934.20x = 659,901.30 × 327,959.80
  4. Step 4: Simplify right side
    439,934.20x = 216,421,098,367.74
  5. Step 5: Solve for x
    x = 216,421,098,367.74/439,934.20
  6. Step 6: Final answer
    x = 491,939.70

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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.