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Finding the Fourth Proportional to 347,236.65, 479,183.98 and 196,339.05

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Solution

The fourth proportional to 347,236.65, 479,183.98 and 196,339.05 is: 270,946.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,236.65 : 479,183.98 = 196,339.05 : x
  2. Step 2: Convert to fraction form
    347,236.65/479,183.98 = 196,339.05/x
  3. Step 3: Cross multiply
    347,236.65x = 479,183.98 × 196,339.05
  4. Step 4: Simplify right side
    347,236.65x = 94,082,527,408.42
  5. Step 5: Solve for x
    x = 94,082,527,408.42/347,236.65
  6. Step 6: Final answer
    x = 270,946.42

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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.