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Finding the Fourth Proportional to 2,092,970, 3,139,923 and 763,274

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Solution

The fourth proportional to 2,092,970, 3,139,923 and 763,274 is: 1,145,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092,970 : 3,139,923 = 763,274 : x
  2. Step 2: Convert to fraction form
    2,092,970/3,139,923 = 763,274/x
  3. Step 3: Cross multiply
    2,092,970x = 3,139,923 × 763,274
  4. Step 4: Simplify right side
    2,092,970x = 2,396,621,587,902
  5. Step 5: Solve for x
    x = 2,396,621,587,902/2,092,970
  6. Step 6: Final answer
    x = 1,145,081.67

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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.