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Finding the Third Proportional to 322,992 and 495,787

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Solution

The third proportional to 322,992 and 495,787 is: 761,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,992 : 495,787 = 495,787 : x
  2. Step 2: Convert to fraction form
    322,992/495,787 = 495,787/x
  3. Step 3: Cross multiply
    322,992x = 495,787 × 495,787
  4. Step 4: Simplify right side
    322,992x = 245,804,749,369
  5. Step 5: Solve for x
    x = 245,804,749,369/322,992
  6. Step 6: Final answer
    x = 761,024.26

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.