Home / 816,081.24-1,126,219.42-453,520.38

Finding the Fourth Proportional to 816,081.24, 1,126,219.42 and 453,520.38

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Solution

The fourth proportional to 816,081.24, 1,126,219.42 and 453,520.38 is: 625,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,081.24 : 1,126,219.42 = 453,520.38 : x
  2. Step 2: Convert to fraction form
    816,081.24/1,126,219.42 = 453,520.38/x
  3. Step 3: Cross multiply
    816,081.24x = 1,126,219.42 × 453,520.38
  4. Step 4: Simplify right side
    816,081.24x = 510,763,459,321.78
  5. Step 5: Solve for x
    x = 510,763,459,321.78/816,081.24
  6. Step 6: Final answer
    x = 625,873.30

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Double scale
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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.