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Finding the Fourth Proportional to 367,040.80, 550,561.23 and 311,053.60

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Solution

The fourth proportional to 367,040.80, 550,561.23 and 311,053.60 is: 466,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,040.80 : 550,561.23 = 311,053.60 : x
  2. Step 2: Convert to fraction form
    367,040.80/550,561.23 = 311,053.60/x
  3. Step 3: Cross multiply
    367,040.80x = 550,561.23 × 311,053.60
  4. Step 4: Simplify right side
    367,040.80x = 171,254,052,611.93
  5. Step 5: Solve for x
    x = 171,254,052,611.93/367,040.80
  6. Step 6: Final answer
    x = 466,580.43

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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.