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Finding the Fourth Proportional to 274,328.20, 410,836.20 and 221,840.20

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Solution

The fourth proportional to 274,328.20, 410,836.20 and 221,840.20 is: 332,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,328.20 : 410,836.20 = 221,840.20 : x
  2. Step 2: Convert to fraction form
    274,328.20/410,836.20 = 221,840.20/x
  3. Step 3: Cross multiply
    274,328.20x = 410,836.20 × 221,840.20
  4. Step 4: Simplify right side
    274,328.20x = 91,139,984,775.24
  5. Step 5: Solve for x
    x = 91,139,984,775.24/274,328.20
  6. Step 6: Final answer
    x = 332,229.73

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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.