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Finding the Fourth Proportional to 625,771.78, 863,247.17 and 395,941.77

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Solution

The fourth proportional to 625,771.78, 863,247.17 and 395,941.77 is: 546,198.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,771.78 : 863,247.17 = 395,941.77 : x
  2. Step 2: Convert to fraction form
    625,771.78/863,247.17 = 395,941.77/x
  3. Step 3: Cross multiply
    625,771.78x = 863,247.17 × 395,941.77
  4. Step 4: Simplify right side
    625,771.78x = 341,795,613,427.15
  5. Step 5: Solve for x
    x = 341,795,613,427.15/625,771.78
  6. Step 6: Final answer
    x = 546,198.51

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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.