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Finding the Fourth Proportional to 263,330.60, 394,995.90 and 115,586.60

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Solution

The fourth proportional to 263,330.60, 394,995.90 and 115,586.60 is: 173,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,330.60 : 394,995.90 = 115,586.60 : x
  2. Step 2: Convert to fraction form
    263,330.60/394,995.90 = 115,586.60/x
  3. Step 3: Cross multiply
    263,330.60x = 394,995.90 × 115,586.60
  4. Step 4: Simplify right side
    263,330.60x = 45,656,233,094.94
  5. Step 5: Solve for x
    x = 45,656,233,094.94/263,330.60
  6. Step 6: Final answer
    x = 173,379.90

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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.