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Finding the Fourth Proportional to 371,533.83, 512,847.50 and 220,629.75

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Solution

The fourth proportional to 371,533.83, 512,847.50 and 220,629.75 is: 304,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,533.83 : 512,847.50 = 220,629.75 : x
  2. Step 2: Convert to fraction form
    371,533.83/512,847.50 = 220,629.75/x
  3. Step 3: Cross multiply
    371,533.83x = 512,847.50 × 220,629.75
  4. Step 4: Simplify right side
    371,533.83x = 113,149,414,609.98
  5. Step 5: Solve for x
    x = 113,149,414,609.98/371,533.83
  6. Step 6: Final answer
    x = 304,546.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.