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Finding the Fourth Proportional to 347,813.56, 479,968.96 and 196,910.56

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Solution

The fourth proportional to 347,813.56, 479,968.96 and 196,910.56 is: 271,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,813.56 : 479,968.96 = 196,910.56 : x
  2. Step 2: Convert to fraction form
    347,813.56/479,968.96 = 196,910.56/x
  3. Step 3: Cross multiply
    347,813.56x = 479,968.96 × 196,910.56
  4. Step 4: Simplify right side
    347,813.56x = 94,510,956,696.22
  5. Step 5: Solve for x
    x = 94,510,956,696.22/347,813.56
  6. Step 6: Final answer
    x = 271,728.79

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1.5x scale

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.