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Finding the Fourth Proportional to 363,438.60, 545,676.30 and 275,310.60

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Solution

The fourth proportional to 363,438.60, 545,676.30 and 275,310.60 is: 413,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,438.60 : 545,676.30 = 275,310.60 : x
  2. Step 2: Convert to fraction form
    363,438.60/545,676.30 = 275,310.60/x
  3. Step 3: Cross multiply
    363,438.60x = 545,676.30 × 275,310.60
  4. Step 4: Simplify right side
    363,438.60x = 150,230,469,558.78
  5. Step 5: Solve for x
    x = 150,230,469,558.78/363,438.60
  6. Step 6: Final answer
    x = 413,358.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.