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Finding the Fourth Proportional to 322,163.84, 444,069.12 and 218,765.60

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Solution

The fourth proportional to 322,163.84, 444,069.12 and 218,765.60 is: 301,545.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,163.84 : 444,069.12 = 218,765.60 : x
  2. Step 2: Convert to fraction form
    322,163.84/444,069.12 = 218,765.60/x
  3. Step 3: Cross multiply
    322,163.84x = 444,069.12 × 218,765.60
  4. Step 4: Simplify right side
    322,163.84x = 97,147,047,478.27
  5. Step 5: Solve for x
    x = 97,147,047,478.27/322,163.84
  6. Step 6: Final answer
    x = 301,545.47

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1.5x scale

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.