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Finding the Fourth Proportional to 952.55, 1,314.97 and 716.59

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Solution

The fourth proportional to 952.55, 1,314.97 and 716.59 is: 989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.55 : 1,314.97 = 716.59 : x
  2. Step 2: Convert to fraction form
    952.55/1,314.97 = 716.59/x
  3. Step 3: Cross multiply
    952.55x = 1,314.97 × 716.59
  4. Step 4: Simplify right side
    952.55x = 942,286.44
  5. Step 5: Solve for x
    x = 942,286.44/952.55
  6. Step 6: Final answer
    x = 989.23

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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.