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Finding the Fourth Proportional to 716.17, 1,074.26 and 196.18

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Solution

The fourth proportional to 716.17, 1,074.26 and 196.18 is: 294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.17 : 1,074.26 = 196.18 : x
  2. Step 2: Convert to fraction form
    716.17/1,074.26 = 196.18/x
  3. Step 3: Cross multiply
    716.17x = 1,074.26 × 196.18
  4. Step 4: Simplify right side
    716.17x = 210,742.40
  5. Step 5: Solve for x
    x = 210,742.40/716.17
  6. Step 6: Final answer
    x = 294.26

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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.