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Finding the Fourth Proportional to 287,662.62, 396,927 and 166,754.38

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Solution

The fourth proportional to 287,662.62, 396,927 and 166,754.38 is: 230,093.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,662.62 : 396,927 = 166,754.38 : x
  2. Step 2: Convert to fraction form
    287,662.62/396,927 = 166,754.38/x
  3. Step 3: Cross multiply
    287,662.62x = 396,927 × 166,754.38
  4. Step 4: Simplify right side
    287,662.62x = 66,189,315,790.26
  5. Step 5: Solve for x
    x = 66,189,315,790.26/287,662.62
  6. Step 6: Final answer
    x = 230,093.56

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1.5x scale

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.