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Finding the Fourth Proportional to 365,592.80, 548,713.20 and 215,645.60

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Solution

The fourth proportional to 365,592.80, 548,713.20 and 215,645.60 is: 323,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,592.80 : 548,713.20 = 215,645.60 : x
  2. Step 2: Convert to fraction form
    365,592.80/548,713.20 = 215,645.60/x
  3. Step 3: Cross multiply
    365,592.80x = 548,713.20 × 215,645.60
  4. Step 4: Simplify right side
    365,592.80x = 118,327,587,241.92
  5. Step 5: Solve for x
    x = 118,327,587,241.92/365,592.80
  6. Step 6: Final answer
    x = 323,659.51

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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.