Home / 809,301.30-1,213,951.95-276,839.70

Finding the Fourth Proportional to 809,301.30, 1,213,951.95 and 276,839.70

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Solution

The fourth proportional to 809,301.30, 1,213,951.95 and 276,839.70 is: 415,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,301.30 : 1,213,951.95 = 276,839.70 : x
  2. Step 2: Convert to fraction form
    809,301.30/1,213,951.95 = 276,839.70/x
  3. Step 3: Cross multiply
    809,301.30x = 1,213,951.95 × 276,839.70
  4. Step 4: Simplify right side
    809,301.30x = 336,070,093,652.42
  5. Step 5: Solve for x
    x = 336,070,093,652.42/809,301.30
  6. Step 6: Final answer
    x = 415,259.55

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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.