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Finding the Third Proportional to 328,519 and 363,079

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Solution

The third proportional to 328,519 and 363,079 is: 401,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,519 : 363,079 = 363,079 : x
  2. Step 2: Convert to fraction form
    328,519/363,079 = 363,079/x
  3. Step 3: Cross multiply
    328,519x = 363,079 × 363,079
  4. Step 4: Simplify right side
    328,519x = 131,826,360,241
  5. Step 5: Solve for x
    x = 131,826,360,241/328,519
  6. Step 6: Final answer
    x = 401,274.69

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.