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Finding the Fourth Proportional to 625,573.22, 863,291.64 and 339,093.22

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Solution

The fourth proportional to 625,573.22, 863,291.64 and 339,093.22 is: 467,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,573.22 : 863,291.64 = 339,093.22 : x
  2. Step 2: Convert to fraction form
    625,573.22/863,291.64 = 339,093.22/x
  3. Step 3: Cross multiply
    625,573.22x = 863,291.64 × 339,093.22
  4. Step 4: Simplify right side
    625,573.22x = 292,736,342,006.68
  5. Step 5: Solve for x
    x = 292,736,342,006.68/625,573.22
  6. Step 6: Final answer
    x = 467,948.97

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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.