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Finding the Fourth Proportional to 366,857.40, 550,286.10 and 317,649.90

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Solution

The fourth proportional to 366,857.40, 550,286.10 and 317,649.90 is: 476,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,857.40 : 550,286.10 = 317,649.90 : x
  2. Step 2: Convert to fraction form
    366,857.40/550,286.10 = 317,649.90/x
  3. Step 3: Cross multiply
    366,857.40x = 550,286.10 × 317,649.90
  4. Step 4: Simplify right side
    366,857.40x = 174,798,324,636.39
  5. Step 5: Solve for x
    x = 174,798,324,636.39/366,857.40
  6. Step 6: Final answer
    x = 476,474.85

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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.