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Finding the Fourth Proportional to 226,506.80, 339,760.20 and 212,682.80

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Solution

The fourth proportional to 226,506.80, 339,760.20 and 212,682.80 is: 319,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,506.80 : 339,760.20 = 212,682.80 : x
  2. Step 2: Convert to fraction form
    226,506.80/339,760.20 = 212,682.80/x
  3. Step 3: Cross multiply
    226,506.80x = 339,760.20 × 212,682.80
  4. Step 4: Simplify right side
    226,506.80x = 72,261,150,664.56
  5. Step 5: Solve for x
    x = 72,261,150,664.56/226,506.80
  6. Step 6: Final answer
    x = 319,024.20

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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.