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Finding the Third Proportional to 402 and 733.50

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Solution

The third proportional to 402 and 733.50 is: 1,338.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402 : 733.50 = 733.50 : x
  2. Step 2: Convert to fraction form
    402/733.50 = 733.50/x
  3. Step 3: Cross multiply
    402x = 733.50 × 733.50
  4. Step 4: Simplify right side
    402x = 538,022.25
  5. Step 5: Solve for x
    x = 538,022.25/402
  6. Step 6: Final answer
    x = 1,338.36

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Why These Related Problems?

These problems maintain the same ratio (1.82) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.