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Finding the Fourth Proportional to 226,675.20, 340,012.80 and 213,772.80

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Solution

The fourth proportional to 226,675.20, 340,012.80 and 213,772.80 is: 320,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,675.20 : 340,012.80 = 213,772.80 : x
  2. Step 2: Convert to fraction form
    226,675.20/340,012.80 = 213,772.80/x
  3. Step 3: Cross multiply
    226,675.20x = 340,012.80 × 213,772.80
  4. Step 4: Simplify right side
    226,675.20x = 72,685,488,291.84
  5. Step 5: Solve for x
    x = 72,685,488,291.84/226,675.20
  6. Step 6: Final answer
    x = 320,659.20

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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.