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Finding the Fourth Proportional to 322,258.90, 444,729.89 and 220,497.79

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Solution

The fourth proportional to 322,258.90, 444,729.89 and 220,497.79 is: 304,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,258.90 : 444,729.89 = 220,497.79 : x
  2. Step 2: Convert to fraction form
    322,258.90/444,729.89 = 220,497.79/x
  3. Step 3: Cross multiply
    322,258.90x = 444,729.89 × 220,497.79
  4. Step 4: Simplify right side
    322,258.90x = 98,061,954,565.80
  5. Step 5: Solve for x
    x = 98,061,954,565.80/322,258.90
  6. Step 6: Final answer
    x = 304,295.57

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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.