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Finding the Third Proportional to 516.94 and 774.84

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Solution

The third proportional to 516.94 and 774.84 is: 1,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.94 : 774.84 = 774.84 : x
  2. Step 2: Convert to fraction form
    516.94/774.84 = 774.84/x
  3. Step 3: Cross multiply
    516.94x = 774.84 × 774.84
  4. Step 4: Simplify right side
    516.94x = 600,382.84
  5. Step 5: Solve for x
    x = 600,382.84/516.94
  6. Step 6: Final answer
    x = 1,161.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.