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Finding the Fourth Proportional to 475,517.45, 656,281.20 and 294,287.73

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Solution

The fourth proportional to 475,517.45, 656,281.20 and 294,287.73 is: 406,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,517.45 : 656,281.20 = 294,287.73 : x
  2. Step 2: Convert to fraction form
    475,517.45/656,281.20 = 294,287.73/x
  3. Step 3: Cross multiply
    475,517.45x = 656,281.20 × 294,287.73
  4. Step 4: Simplify right side
    475,517.45x = 193,135,504,589.68
  5. Step 5: Solve for x
    x = 193,135,504,589.68/475,517.45
  6. Step 6: Final answer
    x = 406,158.61

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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.