Home / 813,356.06-1,122,400.80-450,786.12

Finding the Fourth Proportional to 813,356.06, 1,122,400.80 and 450,786.12

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Solution

The fourth proportional to 813,356.06, 1,122,400.80 and 450,786.12 is: 622,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,356.06 : 1,122,400.80 = 450,786.12 : x
  2. Step 2: Convert to fraction form
    813,356.06/1,122,400.80 = 450,786.12/x
  3. Step 3: Cross multiply
    813,356.06x = 1,122,400.80 × 450,786.12
  4. Step 4: Simplify right side
    813,356.06x = 505,962,701,716.90
  5. Step 5: Solve for x
    x = 505,962,701,716.90/813,356.06
  6. Step 6: Final answer
    x = 622,067.91

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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.