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Finding the Fourth Proportional to 263,057.80, 394,586.70 and 163,330.60

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Solution

The fourth proportional to 263,057.80, 394,586.70 and 163,330.60 is: 244,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,057.80 : 394,586.70 = 163,330.60 : x
  2. Step 2: Convert to fraction form
    263,057.80/394,586.70 = 163,330.60/x
  3. Step 3: Cross multiply
    263,057.80x = 394,586.70 × 163,330.60
  4. Step 4: Simplify right side
    263,057.80x = 64,448,082,463.02
  5. Step 5: Solve for x
    x = 64,448,082,463.02/263,057.80
  6. Step 6: Final answer
    x = 244,995.90

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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.