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Finding the Fourth Proportional to 481,578.86, 722,415.99 and 178,052.60

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Solution

The fourth proportional to 481,578.86, 722,415.99 and 178,052.60 is: 267,096.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,578.86 : 722,415.99 = 178,052.60 : x
  2. Step 2: Convert to fraction form
    481,578.86/722,415.99 = 178,052.60/x
  3. Step 3: Cross multiply
    481,578.86x = 722,415.99 × 178,052.60
  4. Step 4: Simplify right side
    481,578.86x = 128,628,045,301.07
  5. Step 5: Solve for x
    x = 128,628,045,301.07/481,578.86
  6. Step 6: Final answer
    x = 267,096.54

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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.