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Finding the Third Proportional to 629.25 and 975.38

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Solution

The third proportional to 629.25 and 975.38 is: 1,511.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.25 : 975.38 = 975.38 : x
  2. Step 2: Convert to fraction form
    629.25/975.38 = 975.38/x
  3. Step 3: Cross multiply
    629.25x = 975.38 × 975.38
  4. Step 4: Simplify right side
    629.25x = 951,356.39
  5. Step 5: Solve for x
    x = 951,356.39/629.25
  6. Step 6: Final answer
    x = 1,511.89

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.