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Finding the Fourth Proportional to 388,339.48, 582,575.61 and 177,995.44

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Solution

The fourth proportional to 388,339.48, 582,575.61 and 177,995.44 is: 267,023.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,339.48 : 582,575.61 = 177,995.44 : x
  2. Step 2: Convert to fraction form
    388,339.48/582,575.61 = 177,995.44/x
  3. Step 3: Cross multiply
    388,339.48x = 582,575.61 × 177,995.44
  4. Step 4: Simplify right side
    388,339.48x = 103,695,802,035.22
  5. Step 5: Solve for x
    x = 103,695,802,035.22/388,339.48
  6. Step 6: Final answer
    x = 267,023.59

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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.