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Finding the Fourth Proportional to 733.68, 1,092.14 and 722.75

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Solution

The fourth proportional to 733.68, 1,092.14 and 722.75 is: 1,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.68 : 1,092.14 = 722.75 : x
  2. Step 2: Convert to fraction form
    733.68/1,092.14 = 722.75/x
  3. Step 3: Cross multiply
    733.68x = 1,092.14 × 722.75
  4. Step 4: Simplify right side
    733.68x = 789,344.19
  5. Step 5: Solve for x
    x = 789,344.19/733.68
  6. Step 6: Final answer
    x = 1,075.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.