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Finding the Fourth Proportional to 548,399.40, 822,080.70 and 323,932.20

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Solution

The fourth proportional to 548,399.40, 822,080.70 and 323,932.20 is: 485,592.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,399.40 : 822,080.70 = 323,932.20 : x
  2. Step 2: Convert to fraction form
    548,399.40/822,080.70 = 323,932.20/x
  3. Step 3: Cross multiply
    548,399.40x = 822,080.70 × 323,932.20
  4. Step 4: Simplify right side
    548,399.40x = 266,298,409,728.54
  5. Step 5: Solve for x
    x = 266,298,409,728.54/548,399.40
  6. Step 6: Final answer
    x = 485,592.09

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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.