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Finding the Fourth Proportional to 1,998,381, 2,757,765.84 and 1,092,963

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Solution

The fourth proportional to 1,998,381, 2,757,765.84 and 1,092,963 is: 1,508,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,381 : 2,757,765.84 = 1,092,963 : x
  2. Step 2: Convert to fraction form
    1,998,381/2,757,765.84 = 1,092,963/x
  3. Step 3: Cross multiply
    1,998,381x = 2,757,765.84 × 1,092,963
  4. Step 4: Simplify right side
    1,998,381x = 3,014,136,025,783.92
  5. Step 5: Solve for x
    x = 3,014,136,025,783.92/1,998,381
  6. Step 6: Final answer
    x = 1,508,288.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.