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Finding the Third Proportional to 196,326 and 311,376

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Solution

The third proportional to 196,326 and 311,376 is: 493,847.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,326 : 311,376 = 311,376 : x
  2. Step 2: Convert to fraction form
    196,326/311,376 = 311,376/x
  3. Step 3: Cross multiply
    196,326x = 311,376 × 311,376
  4. Step 4: Simplify right side
    196,326x = 96,955,013,376
  5. Step 5: Solve for x
    x = 96,955,013,376/196,326
  6. Step 6: Final answer
    x = 493,847.04

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.