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Finding the Fourth Proportional to 347,604.24, 479,703.96 and 196,698

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Solution

The fourth proportional to 347,604.24, 479,703.96 and 196,698 is: 271,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,604.24 : 479,703.96 = 196,698 : x
  2. Step 2: Convert to fraction form
    347,604.24/479,703.96 = 196,698/x
  3. Step 3: Cross multiply
    347,604.24x = 479,703.96 × 196,698
  4. Step 4: Simplify right side
    347,604.24x = 94,356,809,524.08
  5. Step 5: Solve for x
    x = 94,356,809,524.08/347,604.24
  6. Step 6: Final answer
    x = 271,448.96

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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.