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Finding the Fourth Proportional to 322,309.62, 444,428.73 and 220,351.68

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Solution

The fourth proportional to 322,309.62, 444,428.73 and 220,351.68 is: 303,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,309.62 : 444,428.73 = 220,351.68 : x
  2. Step 2: Convert to fraction form
    322,309.62/444,428.73 = 220,351.68/x
  3. Step 3: Cross multiply
    322,309.62x = 444,428.73 × 220,351.68
  4. Step 4: Simplify right side
    322,309.62x = 97,930,617,295.77
  5. Step 5: Solve for x
    x = 97,930,617,295.77/322,309.62
  6. Step 6: Final answer
    x = 303,840.19

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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.