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Finding the Fourth Proportional to 625,845.82, 938,393.82 and 199,197.34

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Solution

The fourth proportional to 625,845.82, 938,393.82 and 199,197.34 is: 298,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,845.82 : 938,393.82 = 199,197.34 : x
  2. Step 2: Convert to fraction form
    625,845.82/938,393.82 = 199,197.34/x
  3. Step 3: Cross multiply
    625,845.82x = 938,393.82 × 199,197.34
  4. Step 4: Simplify right side
    625,845.82x = 186,925,552,816.44
  5. Step 5: Solve for x
    x = 186,925,552,816.44/625,845.82
  6. Step 6: Final answer
    x = 298,676.68

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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.