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Finding the Fourth Proportional to 548,056.80, 822,085.20 and 193,471.20

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Solution

The fourth proportional to 548,056.80, 822,085.20 and 193,471.20 is: 290,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,056.80 : 822,085.20 = 193,471.20 : x
  2. Step 2: Convert to fraction form
    548,056.80/822,085.20 = 193,471.20/x
  3. Step 3: Cross multiply
    548,056.80x = 822,085.20 × 193,471.20
  4. Step 4: Simplify right side
    548,056.80x = 159,049,810,146.24
  5. Step 5: Solve for x
    x = 159,049,810,146.24/548,056.80
  6. Step 6: Final answer
    x = 290,206.80

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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.