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Finding the Third Proportional to 621,687 and 934,838.25

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Solution

The third proportional to 621,687 and 934,838.25 is: 1,405,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,687 : 934,838.25 = 934,838.25 : x
  2. Step 2: Convert to fraction form
    621,687/934,838.25 = 934,838.25/x
  3. Step 3: Cross multiply
    621,687x = 934,838.25 × 934,838.25
  4. Step 4: Simplify right side
    621,687x = 873,922,553,663.06
  5. Step 5: Solve for x
    x = 873,922,553,663.06/621,687
  6. Step 6: Final answer
    x = 1,405,727.57

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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.