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Finding the Fourth Proportional to 543,016.80, 814,136.40 and 227,311.20

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Solution

The fourth proportional to 543,016.80, 814,136.40 and 227,311.20 is: 340,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,016.80 : 814,136.40 = 227,311.20 : x
  2. Step 2: Convert to fraction form
    543,016.80/814,136.40 = 227,311.20/x
  3. Step 3: Cross multiply
    543,016.80x = 814,136.40 × 227,311.20
  4. Step 4: Simplify right side
    543,016.80x = 185,062,322,047.68
  5. Step 5: Solve for x
    x = 185,062,322,047.68/543,016.80
  6. Step 6: Final answer
    x = 340,804.05

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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.