Home / 823,517.40-1,235,333.70-324,816.60

Finding the Fourth Proportional to 823,517.40, 1,235,333.70 and 324,816.60

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Solution

The fourth proportional to 823,517.40, 1,235,333.70 and 324,816.60 is: 487,247.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,517.40 : 1,235,333.70 = 324,816.60 : x
  2. Step 2: Convert to fraction form
    823,517.40/1,235,333.70 = 324,816.60/x
  3. Step 3: Cross multiply
    823,517.40x = 1,235,333.70 × 324,816.60
  4. Step 4: Simplify right side
    823,517.40x = 401,256,892,299.42
  5. Step 5: Solve for x
    x = 401,256,892,299.42/823,517.40
  6. Step 6: Final answer
    x = 487,247.62

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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.