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Finding the Fourth Proportional to 275,588.40, 413,382.60 and 88,618.80

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Solution

The fourth proportional to 275,588.40, 413,382.60 and 88,618.80 is: 132,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,588.40 : 413,382.60 = 88,618.80 : x
  2. Step 2: Convert to fraction form
    275,588.40/413,382.60 = 88,618.80/x
  3. Step 3: Cross multiply
    275,588.40x = 413,382.60 × 88,618.80
  4. Step 4: Simplify right side
    275,588.40x = 36,633,469,952.88
  5. Step 5: Solve for x
    x = 36,633,469,952.88/275,588.40
  6. Step 6: Final answer
    x = 132,928.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.