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Finding the Fourth Proportional to 347,553.25, 479,630.78 and 196,650.25

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Solution

The fourth proportional to 347,553.25, 479,630.78 and 196,650.25 is: 271,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,553.25 : 479,630.78 = 196,650.25 : x
  2. Step 2: Convert to fraction form
    347,553.25/479,630.78 = 196,650.25/x
  3. Step 3: Cross multiply
    347,553.25x = 479,630.78 × 196,650.25
  4. Step 4: Simplify right side
    347,553.25x = 94,319,512,794.70
  5. Step 5: Solve for x
    x = 94,319,512,794.70/347,553.25
  6. Step 6: Final answer
    x = 271,381.47

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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.