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Finding the Fourth Proportional to 226,645.20, 339,967.80 and 200,401.20

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Solution

The fourth proportional to 226,645.20, 339,967.80 and 200,401.20 is: 300,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,645.20 : 339,967.80 = 200,401.20 : x
  2. Step 2: Convert to fraction form
    226,645.20/339,967.80 = 200,401.20/x
  3. Step 3: Cross multiply
    226,645.20x = 339,967.80 × 200,401.20
  4. Step 4: Simplify right side
    226,645.20x = 68,129,955,081.36
  5. Step 5: Solve for x
    x = 68,129,955,081.36/226,645.20
  6. Step 6: Final answer
    x = 300,601.80

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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.