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Finding the Fourth Proportional to 484,044.80, 726,067.20 and 445,337.60

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Solution

The fourth proportional to 484,044.80, 726,067.20 and 445,337.60 is: 668,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,044.80 : 726,067.20 = 445,337.60 : x
  2. Step 2: Convert to fraction form
    484,044.80/726,067.20 = 445,337.60/x
  3. Step 3: Cross multiply
    484,044.80x = 726,067.20 × 445,337.60
  4. Step 4: Simplify right side
    484,044.80x = 323,345,024,286.72
  5. Step 5: Solve for x
    x = 323,345,024,286.72/484,044.80
  6. Step 6: Final answer
    x = 668,006.40

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Similar ratio
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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.