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Finding the Third Proportional to 621,691.50 and 934,845

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Solution

The third proportional to 621,691.50 and 934,845 is: 1,405,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,691.50 : 934,845 = 934,845 : x
  2. Step 2: Convert to fraction form
    621,691.50/934,845 = 934,845/x
  3. Step 3: Cross multiply
    621,691.50x = 934,845 × 934,845
  4. Step 4: Simplify right side
    621,691.50x = 873,935,174,025
  5. Step 5: Solve for x
    x = 873,935,174,025/621,691.50
  6. Step 6: Final answer
    x = 1,405,737.69

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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.