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Finding the Fourth Proportional to 367,788.80, 551,683.20 and 327,699.20

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Solution

The fourth proportional to 367,788.80, 551,683.20 and 327,699.20 is: 491,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,788.80 : 551,683.20 = 327,699.20 : x
  2. Step 2: Convert to fraction form
    367,788.80/551,683.20 = 327,699.20/x
  3. Step 3: Cross multiply
    367,788.80x = 551,683.20 × 327,699.20
  4. Step 4: Simplify right side
    367,788.80x = 180,786,143,293.44
  5. Step 5: Solve for x
    x = 180,786,143,293.44/367,788.80
  6. Step 6: Final answer
    x = 491,548.80

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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.