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Finding the Fourth Proportional to 625,734.58, 863,531.94 and 353,796.64

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Solution

The fourth proportional to 625,734.58, 863,531.94 and 353,796.64 is: 488,249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,734.58 : 863,531.94 = 353,796.64 : x
  2. Step 2: Convert to fraction form
    625,734.58/863,531.94 = 353,796.64/x
  3. Step 3: Cross multiply
    625,734.58x = 863,531.94 × 353,796.64
  4. Step 4: Simplify right side
    625,734.58x = 305,514,698,670.05
  5. Step 5: Solve for x
    x = 305,514,698,670.05/625,734.58
  6. Step 6: Final answer
    x = 488,249.66

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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.