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Finding the Third Proportional to 264.25 and 433.50

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Solution

The third proportional to 264.25 and 433.50 is: 711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.25 : 433.50 = 433.50 : x
  2. Step 2: Convert to fraction form
    264.25/433.50 = 433.50/x
  3. Step 3: Cross multiply
    264.25x = 433.50 × 433.50
  4. Step 4: Simplify right side
    264.25x = 187,922.25
  5. Step 5: Solve for x
    x = 187,922.25/264.25
  6. Step 6: Final answer
    x = 711.15

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.