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Finding the Third Proportional to 822.38 and 1,264.50

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Solution

The third proportional to 822.38 and 1,264.50 is: 1,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    822.38 : 1,264.50 = 1,264.50 : x
  2. Step 2: Convert to fraction form
    822.38/1,264.50 = 1,264.50/x
  3. Step 3: Cross multiply
    822.38x = 1,264.50 × 1,264.50
  4. Step 4: Simplify right side
    822.38x = 1,598,960.25
  5. Step 5: Solve for x
    x = 1,598,960.25/822.38
  6. Step 6: Final answer
    x = 1,944.32

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.