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Finding the Fourth Proportional to 396,675.64, 546,498.85 and 274,050.55

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Solution

The fourth proportional to 396,675.64, 546,498.85 and 274,050.55 is: 377,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,675.64 : 546,498.85 = 274,050.55 : x
  2. Step 2: Convert to fraction form
    396,675.64/546,498.85 = 274,050.55/x
  3. Step 3: Cross multiply
    396,675.64x = 546,498.85 × 274,050.55
  4. Step 4: Simplify right side
    396,675.64x = 149,768,310,416.87
  5. Step 5: Solve for x
    x = 149,768,310,416.87/396,675.64
  6. Step 6: Final answer
    x = 377,558.63

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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.