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Finding the Third Proportional to 436,186 and 656,464

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Solution

The third proportional to 436,186 and 656,464 is: 987,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,186 : 656,464 = 656,464 : x
  2. Step 2: Convert to fraction form
    436,186/656,464 = 656,464/x
  3. Step 3: Cross multiply
    436,186x = 656,464 × 656,464
  4. Step 4: Simplify right side
    436,186x = 430,944,983,296
  5. Step 5: Solve for x
    x = 430,944,983,296/436,186
  6. Step 6: Final answer
    x = 987,984.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.