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Finding the Third Proportional to 260,938.50 and 403,192.50

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Solution

The third proportional to 260,938.50 and 403,192.50 is: 622,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,938.50 : 403,192.50 = 403,192.50 : x
  2. Step 2: Convert to fraction form
    260,938.50/403,192.50 = 403,192.50/x
  3. Step 3: Cross multiply
    260,938.50x = 403,192.50 × 403,192.50
  4. Step 4: Simplify right side
    260,938.50x = 162,564,192,056.25
  5. Step 5: Solve for x
    x = 162,564,192,056.25/260,938.50
  6. Step 6: Final answer
    x = 622,998.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.