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Finding the Third Proportional to 324,642 and 708,330

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Solution

The third proportional to 324,642 and 708,330 is: 1,545,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,642 : 708,330 = 708,330 : x
  2. Step 2: Convert to fraction form
    324,642/708,330 = 708,330/x
  3. Step 3: Cross multiply
    324,642x = 708,330 × 708,330
  4. Step 4: Simplify right side
    324,642x = 501,731,388,900
  5. Step 5: Solve for x
    x = 501,731,388,900/324,642
  6. Step 6: Final answer
    x = 1,545,491.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.