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Finding the Fourth Proportional to 548,016.80, 822,025.20 and 193,431.20

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Solution

The fourth proportional to 548,016.80, 822,025.20 and 193,431.20 is: 290,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,016.80 : 822,025.20 = 193,431.20 : x
  2. Step 2: Convert to fraction form
    548,016.80/822,025.20 = 193,431.20/x
  3. Step 3: Cross multiply
    548,016.80x = 822,025.20 × 193,431.20
  4. Step 4: Simplify right side
    548,016.80x = 159,005,320,866.24
  5. Step 5: Solve for x
    x = 159,005,320,866.24/548,016.80
  6. Step 6: Final answer
    x = 290,146.80

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Similar ratio
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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.