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Finding the Third Proportional to 196,917 and 431,958

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Solution

The third proportional to 196,917 and 431,958 is: 947,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,917 : 431,958 = 431,958 : x
  2. Step 2: Convert to fraction form
    196,917/431,958 = 431,958/x
  3. Step 3: Cross multiply
    196,917x = 431,958 × 431,958
  4. Step 4: Simplify right side
    196,917x = 186,587,713,764
  5. Step 5: Solve for x
    x = 186,587,713,764/196,917
  6. Step 6: Final answer
    x = 947,544.97

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.