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Finding the Third Proportional to 616.50 and 934.88

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Solution

The third proportional to 616.50 and 934.88 is: 1,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.50 : 934.88 = 934.88 : x
  2. Step 2: Convert to fraction form
    616.50/934.88 = 934.88/x
  3. Step 3: Cross multiply
    616.50x = 934.88 × 934.88
  4. Step 4: Simplify right side
    616.50x = 873,991.27
  5. Step 5: Solve for x
    x = 873,991.27/616.50
  6. Step 6: Final answer
    x = 1,417.67

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.