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Finding the Fourth Proportional to 400,044.80, 600,067.20 and 367,385.60

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Solution

The fourth proportional to 400,044.80, 600,067.20 and 367,385.60 is: 551,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,044.80 : 600,067.20 = 367,385.60 : x
  2. Step 2: Convert to fraction form
    400,044.80/600,067.20 = 367,385.60/x
  3. Step 3: Cross multiply
    400,044.80x = 600,067.20 × 367,385.60
  4. Step 4: Simplify right side
    400,044.80x = 220,456,048,312.32
  5. Step 5: Solve for x
    x = 220,456,048,312.32/400,044.80
  6. Step 6: Final answer
    x = 551,078.40

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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.