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Finding the Third Proportional to 380,212 and 588,654

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Solution

The third proportional to 380,212 and 588,654 is: 911,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,212 : 588,654 = 588,654 : x
  2. Step 2: Convert to fraction form
    380,212/588,654 = 588,654/x
  3. Step 3: Cross multiply
    380,212x = 588,654 × 588,654
  4. Step 4: Simplify right side
    380,212x = 346,513,531,716
  5. Step 5: Solve for x
    x = 346,513,531,716/380,212
  6. Step 6: Final answer
    x = 911,369.27

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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.