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Finding the Fourth Proportional to 321,424.26, 482,216.69 and 226,839.07

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Solution

The fourth proportional to 321,424.26, 482,216.69 and 226,839.07 is: 340,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,424.26 : 482,216.69 = 226,839.07 : x
  2. Step 2: Convert to fraction form
    321,424.26/482,216.69 = 226,839.07/x
  3. Step 3: Cross multiply
    321,424.26x = 482,216.69 × 226,839.07
  4. Step 4: Simplify right side
    321,424.26x = 109,385,585,498.08
  5. Step 5: Solve for x
    x = 109,385,585,498.08/321,424.26
  6. Step 6: Final answer
    x = 340,315.28

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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.