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Finding the Fourth Proportional to 627,281.64, 940,974.46 and 200,879.72

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Solution

The fourth proportional to 627,281.64, 940,974.46 and 200,879.72 is: 301,336.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,281.64 : 940,974.46 = 200,879.72 : x
  2. Step 2: Convert to fraction form
    627,281.64/940,974.46 = 200,879.72/x
  3. Step 3: Cross multiply
    627,281.64x = 940,974.46 × 200,879.72
  4. Step 4: Simplify right side
    627,281.64x = 189,022,686,051.95
  5. Step 5: Solve for x
    x = 189,022,686,051.95/627,281.64
  6. Step 6: Final answer
    x = 301,336.23

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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.