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Finding the Third Proportional to 187,411 and 401,606

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Solution

The third proportional to 187,411 and 401,606 is: 860,607.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,411 : 401,606 = 401,606 : x
  2. Step 2: Convert to fraction form
    187,411/401,606 = 401,606/x
  3. Step 3: Cross multiply
    187,411x = 401,606 × 401,606
  4. Step 4: Simplify right side
    187,411x = 161,287,379,236
  5. Step 5: Solve for x
    x = 161,287,379,236/187,411
  6. Step 6: Final answer
    x = 860,607.86

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.