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Finding the Third Proportional to 916,839 and 1,991,452.50

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Solution

The third proportional to 916,839 and 1,991,452.50 is: 4,325,604.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,839 : 1,991,452.50 = 1,991,452.50 : x
  2. Step 2: Convert to fraction form
    916,839/1,991,452.50 = 1,991,452.50/x
  3. Step 3: Cross multiply
    916,839x = 1,991,452.50 × 1,991,452.50
  4. Step 4: Simplify right side
    916,839x = 3,965,883,059,756.25
  5. Step 5: Solve for x
    x = 3,965,883,059,756.25/916,839
  6. Step 6: Final answer
    x = 4,325,604.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.