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Finding the Fourth Proportional to 306,523.88, 422,939.56 and 179,174.84

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Solution

The fourth proportional to 306,523.88, 422,939.56 and 179,174.84 is: 247,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,523.88 : 422,939.56 = 179,174.84 : x
  2. Step 2: Convert to fraction form
    306,523.88/422,939.56 = 179,174.84/x
  3. Step 3: Cross multiply
    306,523.88x = 422,939.56 × 179,174.84
  4. Step 4: Simplify right side
    306,523.88x = 75,780,127,992.67
  5. Step 5: Solve for x
    x = 75,780,127,992.67/306,523.88
  6. Step 6: Final answer
    x = 247,224.22

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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.