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Finding the Fourth Proportional to 663,288.37, 994,760.33 and 189,863.01

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Solution

The fourth proportional to 663,288.37, 994,760.33 and 189,863.01 is: 284,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,288.37 : 994,760.33 = 189,863.01 : x
  2. Step 2: Convert to fraction form
    663,288.37/994,760.33 = 189,863.01/x
  3. Step 3: Cross multiply
    663,288.37x = 994,760.33 × 189,863.01
  4. Step 4: Simplify right side
    663,288.37x = 188,868,189,533.08
  5. Step 5: Solve for x
    x = 188,868,189,533.08/663,288.37
  6. Step 6: Final answer
    x = 284,745.22

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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.