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Finding the Fourth Proportional to 287,227.96, 396,241.54 and 185,286.26

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Solution

The fourth proportional to 287,227.96, 396,241.54 and 185,286.26 is: 255,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,227.96 : 396,241.54 = 185,286.26 : x
  2. Step 2: Convert to fraction form
    287,227.96/396,241.54 = 185,286.26/x
  3. Step 3: Cross multiply
    287,227.96x = 396,241.54 × 185,286.26
  4. Step 4: Simplify right side
    287,227.96x = 73,418,113,530.63
  5. Step 5: Solve for x
    x = 73,418,113,530.63/287,227.96
  6. Step 6: Final answer
    x = 255,609.22

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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.