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Finding the Fourth Proportional to 331,889.40, 458,048.52 and 202,801.32

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Solution

The fourth proportional to 331,889.40, 458,048.52 and 202,801.32 is: 279,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,889.40 : 458,048.52 = 202,801.32 : x
  2. Step 2: Convert to fraction form
    331,889.40/458,048.52 = 202,801.32/x
  3. Step 3: Cross multiply
    331,889.40x = 458,048.52 × 202,801.32
  4. Step 4: Simplify right side
    331,889.40x = 92,892,844,480.05
  5. Step 5: Solve for x
    x = 92,892,844,480.05/331,889.40
  6. Step 6: Final answer
    x = 279,890.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.