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Finding the Third Proportional to 188,535 and 406,590

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Solution

The third proportional to 188,535 and 406,590 is: 876,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,535 : 406,590 = 406,590 : x
  2. Step 2: Convert to fraction form
    188,535/406,590 = 406,590/x
  3. Step 3: Cross multiply
    188,535x = 406,590 × 406,590
  4. Step 4: Simplify right side
    188,535x = 165,315,428,100
  5. Step 5: Solve for x
    x = 165,315,428,100/188,535
  6. Step 6: Final answer
    x = 876,842.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.