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Finding the Fourth Proportional to 568,300.12, 851,997.50 and 328,141.68

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Solution

The fourth proportional to 568,300.12, 851,997.50 and 328,141.68 is: 491,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,300.12 : 851,997.50 = 328,141.68 : x
  2. Step 2: Convert to fraction form
    568,300.12/851,997.50 = 328,141.68/x
  3. Step 3: Cross multiply
    568,300.12x = 851,997.50 × 328,141.68
  4. Step 4: Simplify right side
    568,300.12x = 279,575,891,005.80
  5. Step 5: Solve for x
    x = 279,575,891,005.80/568,300.12
  6. Step 6: Final answer
    x = 491,951.14

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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.