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Finding the Fourth Proportional to 306,463.72, 422,970.24 and 179,114.44

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Solution

The fourth proportional to 306,463.72, 422,970.24 and 179,114.44 is: 247,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,463.72 : 422,970.24 = 179,114.44 : x
  2. Step 2: Convert to fraction form
    306,463.72/422,970.24 = 179,114.44/x
  3. Step 3: Cross multiply
    306,463.72x = 422,970.24 × 179,114.44
  4. Step 4: Simplify right side
    306,463.72x = 75,760,077,674.27
  5. Step 5: Solve for x
    x = 75,760,077,674.27/306,463.72
  6. Step 6: Final answer
    x = 247,207.33

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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.