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Finding the Fourth Proportional to 366,844.20, 550,266.30 and 316,105.80

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Solution

The fourth proportional to 366,844.20, 550,266.30 and 316,105.80 is: 474,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,844.20 : 550,266.30 = 316,105.80 : x
  2. Step 2: Convert to fraction form
    366,844.20/550,266.30 = 316,105.80/x
  3. Step 3: Cross multiply
    366,844.20x = 550,266.30 × 316,105.80
  4. Step 4: Simplify right side
    366,844.20x = 173,942,368,974.54
  5. Step 5: Solve for x
    x = 173,942,368,974.54/366,844.20
  6. Step 6: Final answer
    x = 474,158.70

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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.