Home / 439,899.70-659,849.55-327,925.30

Finding the Fourth Proportional to 439,899.70, 659,849.55 and 327,925.30

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Solution

The fourth proportional to 439,899.70, 659,849.55 and 327,925.30 is: 491,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,899.70 : 659,849.55 = 327,925.30 : x
  2. Step 2: Convert to fraction form
    439,899.70/659,849.55 = 327,925.30/x
  3. Step 3: Cross multiply
    439,899.70x = 659,849.55 × 327,925.30
  4. Step 4: Simplify right side
    439,899.70x = 216,381,361,638.62
  5. Step 5: Solve for x
    x = 216,381,361,638.62/439,899.70
  6. Step 6: Final answer
    x = 491,887.95

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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.