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Finding the Third Proportional to 623.50 and 934.75

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Solution

The third proportional to 623.50 and 934.75 is: 1,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.50 : 934.75 = 934.75 : x
  2. Step 2: Convert to fraction form
    623.50/934.75 = 934.75/x
  3. Step 3: Cross multiply
    623.50x = 934.75 × 934.75
  4. Step 4: Simplify right side
    623.50x = 873,757.56
  5. Step 5: Solve for x
    x = 873,757.56/623.50
  6. Step 6: Final answer
    x = 1,401.38

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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.