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Finding the Fourth Proportional to 568,620.52, 851,079.02 and 418,801.80

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Solution

The fourth proportional to 568,620.52, 851,079.02 and 418,801.80 is: 626,838.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,620.52 : 851,079.02 = 418,801.80 : x
  2. Step 2: Convert to fraction form
    568,620.52/851,079.02 = 418,801.80/x
  3. Step 3: Cross multiply
    568,620.52x = 851,079.02 × 418,801.80
  4. Step 4: Simplify right side
    568,620.52x = 356,433,425,518.24
  5. Step 5: Solve for x
    x = 356,433,425,518.24/568,620.52
  6. Step 6: Final answer
    x = 626,838.84

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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.