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Finding the Third Proportional to 263.25 and 625.50

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Solution

The third proportional to 263.25 and 625.50 is: 1,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.25 : 625.50 = 625.50 : x
  2. Step 2: Convert to fraction form
    263.25/625.50 = 625.50/x
  3. Step 3: Cross multiply
    263.25x = 625.50 × 625.50
  4. Step 4: Simplify right side
    263.25x = 391,250.25
  5. Step 5: Solve for x
    x = 391,250.25/263.25
  6. Step 6: Final answer
    x = 1,486.23

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.