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Finding the Third Proportional to 170,378 and 362,612

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Solution

The third proportional to 170,378 and 362,612 is: 771,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,378 : 362,612 = 362,612 : x
  2. Step 2: Convert to fraction form
    170,378/362,612 = 362,612/x
  3. Step 3: Cross multiply
    170,378x = 362,612 × 362,612
  4. Step 4: Simplify right side
    170,378x = 131,487,462,544
  5. Step 5: Solve for x
    x = 131,487,462,544/170,378
  6. Step 6: Final answer
    x = 771,739.68

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.