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Finding the Third Proportional to 931,990 and 1,999,916

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Solution

The third proportional to 931,990 and 1,999,916 is: 4,291,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,990 : 1,999,916 = 1,999,916 : x
  2. Step 2: Convert to fraction form
    931,990/1,999,916 = 1,999,916/x
  3. Step 3: Cross multiply
    931,990x = 1,999,916 × 1,999,916
  4. Step 4: Simplify right side
    931,990x = 3,999,664,007,056
  5. Step 5: Solve for x
    x = 3,999,664,007,056/931,990
  6. Step 6: Final answer
    x = 4,291,531.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.