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Finding the Fourth Proportional to 399,980.68, 552,029.71 and 245,024.44

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Solution

The fourth proportional to 399,980.68, 552,029.71 and 245,024.44 is: 338,168.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,980.68 : 552,029.71 = 245,024.44 : x
  2. Step 2: Convert to fraction form
    399,980.68/552,029.71 = 245,024.44/x
  3. Step 3: Cross multiply
    399,980.68x = 552,029.71 × 245,024.44
  4. Step 4: Simplify right side
    399,980.68x = 135,260,770,556.11
  5. Step 5: Solve for x
    x = 135,260,770,556.11/399,980.68
  6. Step 6: Final answer
    x = 338,168.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.