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Finding the Fourth Proportional to 324,634.32, 447,992.64 and 181,392.72

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Solution

The fourth proportional to 324,634.32, 447,992.64 and 181,392.72 is: 250,320.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,634.32 : 447,992.64 = 181,392.72 : x
  2. Step 2: Convert to fraction form
    324,634.32/447,992.64 = 181,392.72/x
  3. Step 3: Cross multiply
    324,634.32x = 447,992.64 × 181,392.72
  4. Step 4: Simplify right side
    324,634.32x = 81,262,603,509.58
  5. Step 5: Solve for x
    x = 81,262,603,509.58/324,634.32
  6. Step 6: Final answer
    x = 250,320.43

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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.