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Finding the Third Proportional to 210,940 and 326,710

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Solution

The third proportional to 210,940 and 326,710 is: 506,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,940 : 326,710 = 326,710 : x
  2. Step 2: Convert to fraction form
    210,940/326,710 = 326,710/x
  3. Step 3: Cross multiply
    210,940x = 326,710 × 326,710
  4. Step 4: Simplify right side
    210,940x = 106,739,424,100
  5. Step 5: Solve for x
    x = 106,739,424,100/210,940
  6. Step 6: Final answer
    x = 506,017.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.