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Finding the Fourth Proportional to 306,518.85, 422,932.68 and 179,169.84

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Solution

The fourth proportional to 306,518.85, 422,932.68 and 179,169.84 is: 247,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,518.85 : 422,932.68 = 179,169.84 : x
  2. Step 2: Convert to fraction form
    306,518.85/422,932.68 = 179,169.84/x
  3. Step 3: Cross multiply
    306,518.85x = 422,932.68 × 179,169.84
  4. Step 4: Simplify right side
    306,518.85x = 75,776,780,606.37
  5. Step 5: Solve for x
    x = 75,776,780,606.37/306,518.85
  6. Step 6: Final answer
    x = 247,217.36

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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.