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Finding the Fourth Proportional to 567,195.90, 851,121.90 and 212,245.80

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Solution

The fourth proportional to 567,195.90, 851,121.90 and 212,245.80 is: 318,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,195.90 : 851,121.90 = 212,245.80 : x
  2. Step 2: Convert to fraction form
    567,195.90/851,121.90 = 212,245.80/x
  3. Step 3: Cross multiply
    567,195.90x = 851,121.90 × 212,245.80
  4. Step 4: Simplify right side
    567,195.90x = 180,647,048,563.02
  5. Step 5: Solve for x
    x = 180,647,048,563.02/567,195.90
  6. Step 6: Final answer
    x = 318,491.46

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1.5x scale

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.