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Finding the Fourth Proportional to 467,634.78, 645,342.84 and 263,695.44

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Solution

The fourth proportional to 467,634.78, 645,342.84 and 263,695.44 is: 363,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,634.78 : 645,342.84 = 263,695.44 : x
  2. Step 2: Convert to fraction form
    467,634.78/645,342.84 = 263,695.44/x
  3. Step 3: Cross multiply
    467,634.78x = 645,342.84 × 263,695.44
  4. Step 4: Simplify right side
    467,634.78x = 170,173,964,144.65
  5. Step 5: Solve for x
    x = 170,173,964,144.65/467,634.78
  6. Step 6: Final answer
    x = 363,903.57

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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.