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Finding the Fourth Proportional to 393,846.06, 543,520.08 and 224,091.12

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Solution

The fourth proportional to 393,846.06, 543,520.08 and 224,091.12 is: 309,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,846.06 : 543,520.08 = 224,091.12 : x
  2. Step 2: Convert to fraction form
    393,846.06/543,520.08 = 224,091.12/x
  3. Step 3: Cross multiply
    393,846.06x = 543,520.08 × 224,091.12
  4. Step 4: Simplify right side
    393,846.06x = 121,798,023,469.69
  5. Step 5: Solve for x
    x = 121,798,023,469.69/393,846.06
  6. Step 6: Final answer
    x = 309,252.87

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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.