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Finding the Third Proportional to 621,247.50 and 1,358,811

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Solution

The third proportional to 621,247.50 and 1,358,811 is: 2,972,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,247.50 : 1,358,811 = 1,358,811 : x
  2. Step 2: Convert to fraction form
    621,247.50/1,358,811 = 1,358,811/x
  3. Step 3: Cross multiply
    621,247.50x = 1,358,811 × 1,358,811
  4. Step 4: Simplify right side
    621,247.50x = 1,846,367,333,721
  5. Step 5: Solve for x
    x = 1,846,367,333,721/621,247.50
  6. Step 6: Final answer
    x = 2,972,031.81

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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.