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Finding the Fourth Proportional to 568,458.21, 852,571.98 and 208,506.55

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Solution

The fourth proportional to 568,458.21, 852,571.98 and 208,506.55 is: 312,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,458.21 : 852,571.98 = 208,506.55 : x
  2. Step 2: Convert to fraction form
    568,458.21/852,571.98 = 208,506.55/x
  3. Step 3: Cross multiply
    568,458.21x = 852,571.98 × 208,506.55
  4. Step 4: Simplify right side
    568,458.21x = 177,766,838,556.39
  5. Step 5: Solve for x
    x = 177,766,838,556.39/568,458.21
  6. Step 6: Final answer
    x = 312,717.52

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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.