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Finding the Fourth Proportional to 325,833.20, 488,749.80 and 276,625.70

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Solution

The fourth proportional to 325,833.20, 488,749.80 and 276,625.70 is: 414,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,833.20 : 488,749.80 = 276,625.70 : x
  2. Step 2: Convert to fraction form
    325,833.20/488,749.80 = 276,625.70/x
  3. Step 3: Cross multiply
    325,833.20x = 488,749.80 × 276,625.70
  4. Step 4: Simplify right side
    325,833.20x = 135,200,755,549.86
  5. Step 5: Solve for x
    x = 135,200,755,549.86/325,833.20
  6. Step 6: Final answer
    x = 414,938.55

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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.