Home / 1,613,189.32-2,226,229.59-878,164.75

Finding the Fourth Proportional to 1,613,189.32, 2,226,229.59 and 878,164.75

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Solution

The fourth proportional to 1,613,189.32, 2,226,229.59 and 878,164.75 is: 1,211,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,189.32 : 2,226,229.59 = 878,164.75 : x
  2. Step 2: Convert to fraction form
    1,613,189.32/2,226,229.59 = 878,164.75/x
  3. Step 3: Cross multiply
    1,613,189.32x = 2,226,229.59 × 878,164.75
  4. Step 4: Simplify right side
    1,613,189.32x = 1,954,996,351,344.95
  5. Step 5: Solve for x
    x = 1,954,996,351,344.95/1,613,189.32
  6. Step 6: Final answer
    x = 1,211,882.78

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.