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Finding the Third Proportional to 336.75 and 634.50

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Solution

The third proportional to 336.75 and 634.50 is: 1,195.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.75 : 634.50 = 634.50 : x
  2. Step 2: Convert to fraction form
    336.75/634.50 = 634.50/x
  3. Step 3: Cross multiply
    336.75x = 634.50 × 634.50
  4. Step 4: Simplify right side
    336.75x = 402,590.25
  5. Step 5: Solve for x
    x = 402,590.25/336.75
  6. Step 6: Final answer
    x = 1,195.52

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.