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Finding the Fourth Proportional to 576,975.82, 864,690.11 and 449,046.58

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Solution

The fourth proportional to 576,975.82, 864,690.11 and 449,046.58 is: 672,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,975.82 : 864,690.11 = 449,046.58 : x
  2. Step 2: Convert to fraction form
    576,975.82/864,690.11 = 449,046.58/x
  3. Step 3: Cross multiply
    576,975.82x = 864,690.11 × 449,046.58
  4. Step 4: Simplify right side
    576,975.82x = 388,286,135,551.00
  5. Step 5: Solve for x
    x = 388,286,135,551.00/576,975.82
  6. Step 6: Final answer
    x = 672,967.78

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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.