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Finding the Third Proportional to 620,901 and 936,211.50

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Solution

The third proportional to 620,901 and 936,211.50 is: 1,411,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,901 : 936,211.50 = 936,211.50 : x
  2. Step 2: Convert to fraction form
    620,901/936,211.50 = 936,211.50/x
  3. Step 3: Cross multiply
    620,901x = 936,211.50 × 936,211.50
  4. Step 4: Simplify right side
    620,901x = 876,491,972,732.25
  5. Step 5: Solve for x
    x = 876,491,972,732.25/620,901
  6. Step 6: Final answer
    x = 1,411,645.29

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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.