Home / 825,414.30-1,238,121.45-541,979.10

Finding the Fourth Proportional to 825,414.30, 1,238,121.45 and 541,979.10

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Solution

The fourth proportional to 825,414.30, 1,238,121.45 and 541,979.10 is: 812,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,414.30 : 1,238,121.45 = 541,979.10 : x
  2. Step 2: Convert to fraction form
    825,414.30/1,238,121.45 = 541,979.10/x
  3. Step 3: Cross multiply
    825,414.30x = 1,238,121.45 × 541,979.10
  4. Step 4: Simplify right side
    825,414.30x = 671,035,949,161.70
  5. Step 5: Solve for x
    x = 671,035,949,161.70/825,414.30
  6. Step 6: Final answer
    x = 812,968.65

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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.