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Finding the Third Proportional to 218,348 and 462,942

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Solution

The third proportional to 218,348 and 462,942 is: 981,530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,348 : 462,942 = 462,942 : x
  2. Step 2: Convert to fraction form
    218,348/462,942 = 462,942/x
  3. Step 3: Cross multiply
    218,348x = 462,942 × 462,942
  4. Step 4: Simplify right side
    218,348x = 214,315,295,364
  5. Step 5: Solve for x
    x = 214,315,295,364/218,348
  6. Step 6: Final answer
    x = 981,530.84

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.