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Finding the Third Proportional to 298,239.50 and 451,703

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Solution

The third proportional to 298,239.50 and 451,703 is: 684,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,239.50 : 451,703 = 451,703 : x
  2. Step 2: Convert to fraction form
    298,239.50/451,703 = 451,703/x
  3. Step 3: Cross multiply
    298,239.50x = 451,703 × 451,703
  4. Step 4: Simplify right side
    298,239.50x = 204,035,600,209
  5. Step 5: Solve for x
    x = 204,035,600,209/298,239.50
  6. Step 6: Final answer
    x = 684,133.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.