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Finding the Fourth Proportional to 306,481.28, 422,802.24 and 179,162.24

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Solution

The fourth proportional to 306,481.28, 422,802.24 and 179,162.24 is: 247,160.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,481.28 : 422,802.24 = 179,162.24 : x
  2. Step 2: Convert to fraction form
    306,481.28/422,802.24 = 179,162.24/x
  3. Step 3: Cross multiply
    306,481.28x = 422,802.24 × 179,162.24
  4. Step 4: Simplify right side
    306,481.28x = 75,750,196,395.42
  5. Step 5: Solve for x
    x = 75,750,196,395.42/306,481.28
  6. Step 6: Final answer
    x = 247,160.92

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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.