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Finding the Fourth Proportional to 297,219.34, 445,142.67 and 178,629.40

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Solution

The fourth proportional to 297,219.34, 445,142.67 and 178,629.40 is: 267,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,219.34 : 445,142.67 = 178,629.40 : x
  2. Step 2: Convert to fraction form
    297,219.34/445,142.67 = 178,629.40/x
  3. Step 3: Cross multiply
    297,219.34x = 445,142.67 × 178,629.40
  4. Step 4: Simplify right side
    297,219.34x = 79,515,568,947.86
  5. Step 5: Solve for x
    x = 79,515,568,947.86/297,219.34
  6. Step 6: Final answer
    x = 267,531.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.