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Finding the Fourth Proportional to 1,981,892.81, 2,735,014.82 and 1,076,474.81

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Solution

The fourth proportional to 1,981,892.81, 2,735,014.82 and 1,076,474.81 is: 1,485,536.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,892.81 : 2,735,014.82 = 1,076,474.81 : x
  2. Step 2: Convert to fraction form
    1,981,892.81/2,735,014.82 = 1,076,474.81/x
  3. Step 3: Cross multiply
    1,981,892.81x = 2,735,014.82 × 1,076,474.81
  4. Step 4: Simplify right side
    1,981,892.81x = 2,944,174,560,161.85
  5. Step 5: Solve for x
    x = 2,944,174,560,161.85/1,981,892.81
  6. Step 6: Final answer
    x = 1,485,536.73

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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.