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Finding the Fourth Proportional to 396,282.40, 546,869.60 and 226,520.16

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Solution

The fourth proportional to 396,282.40, 546,869.60 and 226,520.16 is: 312,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,282.40 : 546,869.60 = 226,520.16 : x
  2. Step 2: Convert to fraction form
    396,282.40/546,869.60 = 226,520.16/x
  3. Step 3: Cross multiply
    396,282.40x = 546,869.60 × 226,520.16
  4. Step 4: Simplify right side
    396,282.40x = 123,876,989,291.14
  5. Step 5: Solve for x
    x = 123,876,989,291.14/396,282.40
  6. Step 6: Final answer
    x = 312,597.76

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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.