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Finding the Fourth Proportional to 474,540.73, 654,845.21 and 259,689.85

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Solution

The fourth proportional to 474,540.73, 654,845.21 and 259,689.85 is: 358,360.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,540.73 : 654,845.21 = 259,689.85 : x
  2. Step 2: Convert to fraction form
    474,540.73/654,845.21 = 259,689.85/x
  3. Step 3: Cross multiply
    474,540.73x = 654,845.21 × 259,689.85
  4. Step 4: Simplify right side
    474,540.73x = 170,056,652,396.39
  5. Step 5: Solve for x
    x = 170,056,652,396.39/474,540.73
  6. Step 6: Final answer
    x = 358,360.50

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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.