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Finding the Third Proportional to 308,016.50 and 460,771.50

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Solution

The third proportional to 308,016.50 and 460,771.50 is: 689,282.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,016.50 : 460,771.50 = 460,771.50 : x
  2. Step 2: Convert to fraction form
    308,016.50/460,771.50 = 460,771.50/x
  3. Step 3: Cross multiply
    308,016.50x = 460,771.50 × 460,771.50
  4. Step 4: Simplify right side
    308,016.50x = 212,310,375,212.25
  5. Step 5: Solve for x
    x = 212,310,375,212.25/308,016.50
  6. Step 6: Final answer
    x = 689,282.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.