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Finding the Fourth Proportional to 3,936,756.23, 5,905,134.43 and 944,940.23

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Solution

The fourth proportional to 3,936,756.23, 5,905,134.43 and 944,940.23 is: 1,417,410.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,756.23 : 5,905,134.43 = 944,940.23 : x
  2. Step 2: Convert to fraction form
    3,936,756.23/5,905,134.43 = 944,940.23/x
  3. Step 3: Cross multiply
    3,936,756.23x = 5,905,134.43 × 944,940.23
  4. Step 4: Simplify right side
    3,936,756.23x = 5,579,999,109,937.73
  5. Step 5: Solve for x
    x = 5,579,999,109,937.73/3,936,756.23
  6. Step 6: Final answer
    x = 1,417,410.37

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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.