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Finding the Fourth Proportional to 349,373.88, 482,087.34 and 196,390.44

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Solution

The fourth proportional to 349,373.88, 482,087.34 and 196,390.44 is: 270,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,373.88 : 482,087.34 = 196,390.44 : x
  2. Step 2: Convert to fraction form
    349,373.88/482,087.34 = 196,390.44/x
  3. Step 3: Cross multiply
    349,373.88x = 482,087.34 × 196,390.44
  4. Step 4: Simplify right side
    349,373.88x = 94,677,344,821.03
  5. Step 5: Solve for x
    x = 94,677,344,821.03/349,373.88
  6. Step 6: Final answer
    x = 270,991.48

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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.