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Finding the Third Proportional to 328,104 and 469,188

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Solution

The third proportional to 328,104 and 469,188 is: 670,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,104 : 469,188 = 469,188 : x
  2. Step 2: Convert to fraction form
    328,104/469,188 = 469,188/x
  3. Step 3: Cross multiply
    328,104x = 469,188 × 469,188
  4. Step 4: Simplify right side
    328,104x = 220,137,379,344
  5. Step 5: Solve for x
    x = 220,137,379,344/328,104
  6. Step 6: Final answer
    x = 670,937.81

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.