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Finding the Third Proportional to 186,706 and 409,700

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Solution

The third proportional to 186,706 and 409,700 is: 899,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,706 : 409,700 = 409,700 : x
  2. Step 2: Convert to fraction form
    186,706/409,700 = 409,700/x
  3. Step 3: Cross multiply
    186,706x = 409,700 × 409,700
  4. Step 4: Simplify right side
    186,706x = 167,854,090,000
  5. Step 5: Solve for x
    x = 167,854,090,000/186,706
  6. Step 6: Final answer
    x = 899,028.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.