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Finding the Third Proportional to 324,930 and 675,861

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Solution

The third proportional to 324,930 and 675,861 is: 1,405,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,930 : 675,861 = 675,861 : x
  2. Step 2: Convert to fraction form
    324,930/675,861 = 675,861/x
  3. Step 3: Cross multiply
    324,930x = 675,861 × 675,861
  4. Step 4: Simplify right side
    324,930x = 456,788,091,321
  5. Step 5: Solve for x
    x = 456,788,091,321/324,930
  6. Step 6: Final answer
    x = 1,405,804.61

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.