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Finding the Third Proportional to 210,246 and 326,442

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Solution

The third proportional to 210,246 and 326,442 is: 506,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,246 : 326,442 = 326,442 : x
  2. Step 2: Convert to fraction form
    210,246/326,442 = 326,442/x
  3. Step 3: Cross multiply
    210,246x = 326,442 × 326,442
  4. Step 4: Simplify right side
    210,246x = 106,564,379,364
  5. Step 5: Solve for x
    x = 106,564,379,364/210,246
  6. Step 6: Final answer
    x = 506,855.68

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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.