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Finding the Fourth Proportional to 716.13, 1,074.25 and 222.47

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Solution

The fourth proportional to 716.13, 1,074.25 and 222.47 is: 333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.13 : 1,074.25 = 222.47 : x
  2. Step 2: Convert to fraction form
    716.13/1,074.25 = 222.47/x
  3. Step 3: Cross multiply
    716.13x = 1,074.25 × 222.47
  4. Step 4: Simplify right side
    716.13x = 238,990.53
  5. Step 5: Solve for x
    x = 238,990.53/716.13
  6. Step 6: Final answer
    x = 333.73

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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.