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Finding the Fourth Proportional to 325,634.40, 488,451.60 and 192,664.80

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Solution

The fourth proportional to 325,634.40, 488,451.60 and 192,664.80 is: 288,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,634.40 : 488,451.60 = 192,664.80 : x
  2. Step 2: Convert to fraction form
    325,634.40/488,451.60 = 192,664.80/x
  3. Step 3: Cross multiply
    325,634.40x = 488,451.60 × 192,664.80
  4. Step 4: Simplify right side
    325,634.40x = 94,107,429,823.68
  5. Step 5: Solve for x
    x = 94,107,429,823.68/325,634.40
  6. Step 6: Final answer
    x = 288,997.20

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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.