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Finding the Fourth Proportional to 388,058.30, 582,087.60 and 174,576.86

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Solution

The fourth proportional to 388,058.30, 582,087.60 and 174,576.86 is: 261,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,058.30 : 582,087.60 = 174,576.86 : x
  2. Step 2: Convert to fraction form
    388,058.30/582,087.60 = 174,576.86/x
  3. Step 3: Cross multiply
    388,058.30x = 582,087.60 × 174,576.86
  4. Step 4: Simplify right side
    388,058.30x = 101,619,022,542.50
  5. Step 5: Solve for x
    x = 101,619,022,542.50/388,058.30
  6. Step 6: Final answer
    x = 261,865.35

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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.