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Finding the Fourth Proportional to 716.68, 1,073.76 and 350.98

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Solution

The fourth proportional to 716.68, 1,073.76 and 350.98 is: 525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.68 : 1,073.76 = 350.98 : x
  2. Step 2: Convert to fraction form
    716.68/1,073.76 = 350.98/x
  3. Step 3: Cross multiply
    716.68x = 1,073.76 × 350.98
  4. Step 4: Simplify right side
    716.68x = 376,868.28
  5. Step 5: Solve for x
    x = 376,868.28/716.68
  6. Step 6: Final answer
    x = 525.85

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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.