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Finding the Fourth Proportional to 363,628.20, 545,004.90 and 186,043.80

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Solution

The fourth proportional to 363,628.20, 545,004.90 and 186,043.80 is: 278,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,628.20 : 545,004.90 = 186,043.80 : x
  2. Step 2: Convert to fraction form
    363,628.20/545,004.90 = 186,043.80/x
  3. Step 3: Cross multiply
    363,628.20x = 545,004.90 × 186,043.80
  4. Step 4: Simplify right side
    363,628.20x = 101,394,782,614.62
  5. Step 5: Solve for x
    x = 101,394,782,614.62/363,628.20
  6. Step 6: Final answer
    x = 278,841.91

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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.