Home / 813,205.06-1,122,229.57-450,634.97

Finding the Fourth Proportional to 813,205.06, 1,122,229.57 and 450,634.97

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Solution

The fourth proportional to 813,205.06, 1,122,229.57 and 450,634.97 is: 621,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,205.06 : 1,122,229.57 = 450,634.97 : x
  2. Step 2: Convert to fraction form
    813,205.06/1,122,229.57 = 450,634.97/x
  3. Step 3: Cross multiply
    813,205.06x = 1,122,229.57 × 450,634.97
  4. Step 4: Simplify right side
    813,205.06x = 505,715,882,998.92
  5. Step 5: Solve for x
    x = 505,715,882,998.92/813,205.06
  6. Step 6: Final answer
    x = 621,879.91

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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.