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Finding the Fourth Proportional to 639,175.00, 958,893.71 and 189,855.85

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Solution

The fourth proportional to 639,175.00, 958,893.71 and 189,855.85 is: 284,822.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,175.00 : 958,893.71 = 189,855.85 : x
  2. Step 2: Convert to fraction form
    639,175.00/958,893.71 = 189,855.85/x
  3. Step 3: Cross multiply
    639,175.00x = 958,893.71 × 189,855.85
  4. Step 4: Simplify right side
    639,175.00x = 182,051,579,891.06
  5. Step 5: Solve for x
    x = 182,051,579,891.06/639,175.00
  6. Step 6: Final answer
    x = 284,822.75

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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.