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Finding the Third Proportional to 213,696 and 461,646

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Solution

The third proportional to 213,696 and 461,646 is: 997,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,696 : 461,646 = 461,646 : x
  2. Step 2: Convert to fraction form
    213,696/461,646 = 461,646/x
  3. Step 3: Cross multiply
    213,696x = 461,646 × 461,646
  4. Step 4: Simplify right side
    213,696x = 213,117,029,316
  5. Step 5: Solve for x
    x = 213,117,029,316/213,696
  6. Step 6: Final answer
    x = 997,290.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.