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Finding the Third Proportional to 213,644 and 335,132

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Solution

The third proportional to 213,644 and 335,132 is: 525,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,644 : 335,132 = 335,132 : x
  2. Step 2: Convert to fraction form
    213,644/335,132 = 335,132/x
  3. Step 3: Cross multiply
    213,644x = 335,132 × 335,132
  4. Step 4: Simplify right side
    213,644x = 112,313,457,424
  5. Step 5: Solve for x
    x = 112,313,457,424/213,644
  6. Step 6: Final answer
    x = 525,703.78

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.