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Finding the Fourth Proportional to 262,531.40, 393,797.10 and 251,013.20

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Solution

The fourth proportional to 262,531.40, 393,797.10 and 251,013.20 is: 376,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,531.40 : 393,797.10 = 251,013.20 : x
  2. Step 2: Convert to fraction form
    262,531.40/393,797.10 = 251,013.20/x
  3. Step 3: Cross multiply
    262,531.40x = 393,797.10 × 251,013.20
  4. Step 4: Simplify right side
    262,531.40x = 98,848,270,221.72
  5. Step 5: Solve for x
    x = 98,848,270,221.72/262,531.40
  6. Step 6: Final answer
    x = 376,519.80

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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.