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Finding the Fourth Proportional to 396,375.88, 546,843 and 226,518.88

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Solution

The fourth proportional to 396,375.88, 546,843 and 226,518.88 is: 312,507.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,375.88 : 546,843 = 226,518.88 : x
  2. Step 2: Convert to fraction form
    396,375.88/546,843 = 226,518.88/x
  3. Step 3: Cross multiply
    396,375.88x = 546,843 × 226,518.88
  4. Step 4: Simplify right side
    396,375.88x = 123,870,263,895.84
  5. Step 5: Solve for x
    x = 123,870,263,895.84/396,375.88
  6. Step 6: Final answer
    x = 312,507.07

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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.