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Finding the Fourth Proportional to 325,649.93, 449,231.56 and 222,206.54

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Solution

The fourth proportional to 325,649.93, 449,231.56 and 222,206.54 is: 306,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,649.93 : 449,231.56 = 222,206.54 : x
  2. Step 2: Convert to fraction form
    325,649.93/449,231.56 = 222,206.54/x
  3. Step 3: Cross multiply
    325,649.93x = 449,231.56 × 222,206.54
  4. Step 4: Simplify right side
    325,649.93x = 99,822,187,804.73
  5. Step 5: Solve for x
    x = 99,822,187,804.73/325,649.93
  6. Step 6: Final answer
    x = 306,532.20

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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.