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Finding the Fourth Proportional to 200,490.30, 300,791.18 and 162,957.43

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Solution

The fourth proportional to 200,490.30, 300,791.18 and 162,957.43 is: 244,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,490.30 : 300,791.18 = 162,957.43 : x
  2. Step 2: Convert to fraction form
    200,490.30/300,791.18 = 162,957.43/x
  3. Step 3: Cross multiply
    200,490.30x = 300,791.18 × 162,957.43
  4. Step 4: Simplify right side
    200,490.30x = 49,016,157,659.47
  5. Step 5: Solve for x
    x = 49,016,157,659.47/200,490.30
  6. Step 6: Final answer
    x = 244,481.44

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1.5x scale

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.