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Finding the Fourth Proportional to 300,766.50, 415,057.77 and 179,912.88

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Solution

The fourth proportional to 300,766.50, 415,057.77 and 179,912.88 is: 248,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,766.50 : 415,057.77 = 179,912.88 : x
  2. Step 2: Convert to fraction form
    300,766.50/415,057.77 = 179,912.88/x
  3. Step 3: Cross multiply
    300,766.50x = 415,057.77 × 179,912.88
  4. Step 4: Simplify right side
    300,766.50x = 74,674,238,767.08
  5. Step 5: Solve for x
    x = 74,674,238,767.08/300,766.50
  6. Step 6: Final answer
    x = 248,279.77

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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.