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Finding the Fourth Proportional to 396,474.37, 546,885.76 and 235,215.25

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Solution

The fourth proportional to 396,474.37, 546,885.76 and 235,215.25 is: 324,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,474.37 : 546,885.76 = 235,215.25 : x
  2. Step 2: Convert to fraction form
    396,474.37/546,885.76 = 235,215.25/x
  3. Step 3: Cross multiply
    396,474.37x = 546,885.76 × 235,215.25
  4. Step 4: Simplify right side
    396,474.37x = 128,635,870,759.84
  5. Step 5: Solve for x
    x = 128,635,870,759.84/396,474.37
  6. Step 6: Final answer
    x = 324,449.40

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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.