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Finding the Fourth Proportional to 303,164.49, 418,396.56 and 226,550.55

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Solution

The fourth proportional to 303,164.49, 418,396.56 and 226,550.55 is: 312,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,164.49 : 418,396.56 = 226,550.55 : x
  2. Step 2: Convert to fraction form
    303,164.49/418,396.56 = 226,550.55/x
  3. Step 3: Cross multiply
    303,164.49x = 418,396.56 × 226,550.55
  4. Step 4: Simplify right side
    303,164.49x = 94,787,970,786.11
  5. Step 5: Solve for x
    x = 94,787,970,786.11/303,164.49
  6. Step 6: Final answer
    x = 312,661.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.