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Finding the Fourth Proportional to 347,658.96, 479,769.56 and 188,682.96

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Solution

The fourth proportional to 347,658.96, 479,769.56 and 188,682.96 is: 260,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,658.96 : 479,769.56 = 188,682.96 : x
  2. Step 2: Convert to fraction form
    347,658.96/479,769.56 = 188,682.96/x
  3. Step 3: Cross multiply
    347,658.96x = 479,769.56 × 188,682.96
  4. Step 4: Simplify right side
    347,658.96x = 90,524,340,698.70
  5. Step 5: Solve for x
    x = 90,524,340,698.70/347,658.96
  6. Step 6: Final answer
    x = 260,382.59

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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.