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Finding the Third Proportional to 368.75 and 768.25

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Solution

The third proportional to 368.75 and 768.25 is: 1,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.75 : 768.25 = 768.25 : x
  2. Step 2: Convert to fraction form
    368.75/768.25 = 768.25/x
  3. Step 3: Cross multiply
    368.75x = 768.25 × 768.25
  4. Step 4: Simplify right side
    368.75x = 590,208.06
  5. Step 5: Solve for x
    x = 590,208.06/368.75
  6. Step 6: Final answer
    x = 1,600.56

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.