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Finding the Fourth Proportional to 366,936.70, 550,405.05 and 316,198.30

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Solution

The fourth proportional to 366,936.70, 550,405.05 and 316,198.30 is: 474,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,936.70 : 550,405.05 = 316,198.30 : x
  2. Step 2: Convert to fraction form
    366,936.70/550,405.05 = 316,198.30/x
  3. Step 3: Cross multiply
    366,936.70x = 550,405.05 × 316,198.30
  4. Step 4: Simplify right side
    366,936.70x = 174,037,141,121.42
  5. Step 5: Solve for x
    x = 174,037,141,121.42/366,936.70
  6. Step 6: Final answer
    x = 474,297.45

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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.