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Finding the Fourth Proportional to 368,344.80, 551,998.80 and 272,829.60

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Solution

The fourth proportional to 368,344.80, 551,998.80 and 272,829.60 is: 408,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,344.80 : 551,998.80 = 272,829.60 : x
  2. Step 2: Convert to fraction form
    368,344.80/551,998.80 = 272,829.60/x
  3. Step 3: Cross multiply
    368,344.80x = 551,998.80 × 272,829.60
  4. Step 4: Simplify right side
    368,344.80x = 150,601,611,804.48
  5. Step 5: Solve for x
    x = 150,601,611,804.48/368,344.80
  6. Step 6: Final answer
    x = 408,860.43

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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.