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Finding the Fourth Proportional to 481,516.80, 722,390.40 and 231,993.60

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Solution

The fourth proportional to 481,516.80, 722,390.40 and 231,993.60 is: 348,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,516.80 : 722,390.40 = 231,993.60 : x
  2. Step 2: Convert to fraction form
    481,516.80/722,390.40 = 231,993.60/x
  3. Step 3: Cross multiply
    481,516.80x = 722,390.40 × 231,993.60
  4. Step 4: Simplify right side
    481,516.80x = 167,589,949,501.44
  5. Step 5: Solve for x
    x = 167,589,949,501.44/481,516.80
  6. Step 6: Final answer
    x = 348,045.90

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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.