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Finding the Fourth Proportional to 2,255.16, 3,382.92 and 716.16

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Solution

The fourth proportional to 2,255.16, 3,382.92 and 716.16 is: 1,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.16 : 3,382.92 = 716.16 : x
  2. Step 2: Convert to fraction form
    2,255.16/3,382.92 = 716.16/x
  3. Step 3: Cross multiply
    2,255.16x = 3,382.92 × 716.16
  4. Step 4: Simplify right side
    2,255.16x = 2,422,711.99
  5. Step 5: Solve for x
    x = 2,422,711.99/2,255.16
  6. Step 6: Final answer
    x = 1,074.30

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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.