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Finding the Fourth Proportional to 408,998.54, 612,584.22 and 296,420.32

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Solution

The fourth proportional to 408,998.54, 612,584.22 and 296,420.32 is: 443,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,998.54 : 612,584.22 = 296,420.32 : x
  2. Step 2: Convert to fraction form
    408,998.54/612,584.22 = 296,420.32/x
  3. Step 3: Cross multiply
    408,998.54x = 612,584.22 × 296,420.32
  4. Step 4: Simplify right side
    408,998.54x = 181,582,410,519.35
  5. Step 5: Solve for x
    x = 181,582,410,519.35/408,998.54
  6. Step 6: Final answer
    x = 443,968.36

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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.