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Finding the Fourth Proportional to 325,537.40, 487,614.90 and 270,241.40

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Solution

The fourth proportional to 325,537.40, 487,614.90 and 270,241.40 is: 404,788.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,537.40 : 487,614.90 = 270,241.40 : x
  2. Step 2: Convert to fraction form
    325,537.40/487,614.90 = 270,241.40/x
  3. Step 3: Cross multiply
    325,537.40x = 487,614.90 × 270,241.40
  4. Step 4: Simplify right side
    325,537.40x = 131,773,733,236.86
  5. Step 5: Solve for x
    x = 131,773,733,236.86/325,537.40
  6. Step 6: Final answer
    x = 404,788.31

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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.