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Finding the Fourth Proportional to 264,388.84, 396,474.46 and 131,220.20

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Solution

The fourth proportional to 264,388.84, 396,474.46 and 131,220.20 is: 196,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,388.84 : 396,474.46 = 131,220.20 : x
  2. Step 2: Convert to fraction form
    264,388.84/396,474.46 = 131,220.20/x
  3. Step 3: Cross multiply
    264,388.84x = 396,474.46 × 131,220.20
  4. Step 4: Simplify right side
    264,388.84x = 52,025,457,936.09
  5. Step 5: Solve for x
    x = 52,025,457,936.09/264,388.84
  6. Step 6: Final answer
    x = 196,776.30

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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.