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Finding the Fourth Proportional to 1,191,824.56, 1,787,732.52 and 481,844.08

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Solution

The fourth proportional to 1,191,824.56, 1,787,732.52 and 481,844.08 is: 722,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,824.56 : 1,787,732.52 = 481,844.08 : x
  2. Step 2: Convert to fraction form
    1,191,824.56/1,787,732.52 = 481,844.08/x
  3. Step 3: Cross multiply
    1,191,824.56x = 1,787,732.52 × 481,844.08
  4. Step 4: Simplify right side
    1,191,824.56x = 861,408,331,385.48
  5. Step 5: Solve for x
    x = 861,408,331,385.48/1,191,824.56
  6. Step 6: Final answer
    x = 722,764.37

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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.