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Finding the Third Proportional to 293,220 and 439,668

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Solution

The third proportional to 293,220 and 439,668 is: 659,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,220 : 439,668 = 439,668 : x
  2. Step 2: Convert to fraction form
    293,220/439,668 = 439,668/x
  3. Step 3: Cross multiply
    293,220x = 439,668 × 439,668
  4. Step 4: Simplify right side
    293,220x = 193,307,950,224
  5. Step 5: Solve for x
    x = 193,307,950,224/293,220
  6. Step 6: Final answer
    x = 659,259.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.