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Finding the Third Proportional to 190,539 and 406,381.50

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Solution

The third proportional to 190,539 and 406,381.50 is: 866,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,539 : 406,381.50 = 406,381.50 : x
  2. Step 2: Convert to fraction form
    190,539/406,381.50 = 406,381.50/x
  3. Step 3: Cross multiply
    190,539x = 406,381.50 × 406,381.50
  4. Step 4: Simplify right side
    190,539x = 165,145,923,542.25
  5. Step 5: Solve for x
    x = 165,145,923,542.25/190,539
  6. Step 6: Final answer
    x = 866,730.29

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.