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Finding the Fourth Proportional to 418,231.10, 627,360.28 and 199,093.41

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Solution

The fourth proportional to 418,231.10, 627,360.28 and 199,093.41 is: 298,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,231.10 : 627,360.28 = 199,093.41 : x
  2. Step 2: Convert to fraction form
    418,231.10/627,360.28 = 199,093.41/x
  3. Step 3: Cross multiply
    418,231.10x = 627,360.28 × 199,093.41
  4. Step 4: Simplify right side
    418,231.10x = 124,903,297,443.76
  5. Step 5: Solve for x
    x = 124,903,297,443.76/418,231.10
  6. Step 6: Final answer
    x = 298,646.60

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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.