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Finding the Third Proportional to 173,396 and 378,544

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Solution

The third proportional to 173,396 and 378,544 is: 826,406.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,396 : 378,544 = 378,544 : x
  2. Step 2: Convert to fraction form
    173,396/378,544 = 378,544/x
  3. Step 3: Cross multiply
    173,396x = 378,544 × 378,544
  4. Step 4: Simplify right side
    173,396x = 143,295,559,936
  5. Step 5: Solve for x
    x = 143,295,559,936/173,396
  6. Step 6: Final answer
    x = 826,406.38

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.