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Finding the Third Proportional to 188,188 and 403,664

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Solution

The third proportional to 188,188 and 403,664 is: 865,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,188 : 403,664 = 403,664 : x
  2. Step 2: Convert to fraction form
    188,188/403,664 = 403,664/x
  3. Step 3: Cross multiply
    188,188x = 403,664 × 403,664
  4. Step 4: Simplify right side
    188,188x = 162,944,624,896
  5. Step 5: Solve for x
    x = 162,944,624,896/188,188
  6. Step 6: Final answer
    x = 865,860.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.