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Finding the Fourth Proportional to 529,658.80, 794,196.60 and 213,758.80

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Solution

The fourth proportional to 529,658.80, 794,196.60 and 213,758.80 is: 320,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,658.80 : 794,196.60 = 213,758.80 : x
  2. Step 2: Convert to fraction form
    529,658.80/794,196.60 = 213,758.80/x
  3. Step 3: Cross multiply
    529,658.80x = 794,196.60 × 213,758.80
  4. Step 4: Simplify right side
    529,658.80x = 169,766,512,180.08
  5. Step 5: Solve for x
    x = 169,766,512,180.08/529,658.80
  6. Step 6: Final answer
    x = 320,520.52

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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.