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Finding the Fourth Proportional to 355,951.20, 491,212.86 and 194,806.17

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Solution

The fourth proportional to 355,951.20, 491,212.86 and 194,806.17 is: 268,832.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,951.20 : 491,212.86 = 194,806.17 : x
  2. Step 2: Convert to fraction form
    355,951.20/491,212.86 = 194,806.17/x
  3. Step 3: Cross multiply
    355,951.20x = 491,212.86 × 194,806.17
  4. Step 4: Simplify right side
    355,951.20x = 95,691,295,911.35
  5. Step 5: Solve for x
    x = 95,691,295,911.35/355,951.20
  6. Step 6: Final answer
    x = 268,832.63

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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.