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Finding the Fourth Proportional to 427,449.78, 589,863.25 and 246,168.54

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Solution

The fourth proportional to 427,449.78, 589,863.25 and 246,168.54 is: 339,702.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,449.78 : 589,863.25 = 246,168.54 : x
  2. Step 2: Convert to fraction form
    427,449.78/589,863.25 = 246,168.54/x
  3. Step 3: Cross multiply
    427,449.78x = 589,863.25 × 246,168.54
  4. Step 4: Simplify right side
    427,449.78x = 145,205,775,052.16
  5. Step 5: Solve for x
    x = 145,205,775,052.16/427,449.78
  6. Step 6: Final answer
    x = 339,702.54

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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.