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Finding the Fourth Proportional to 408,044.80, 612,067.20 and 362,555.20

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Solution

The fourth proportional to 408,044.80, 612,067.20 and 362,555.20 is: 543,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,044.80 : 612,067.20 = 362,555.20 : x
  2. Step 2: Convert to fraction form
    408,044.80/612,067.20 = 362,555.20/x
  3. Step 3: Cross multiply
    408,044.80x = 612,067.20 × 362,555.20
  4. Step 4: Simplify right side
    408,044.80x = 221,908,146,109.44
  5. Step 5: Solve for x
    x = 221,908,146,109.44/408,044.80
  6. Step 6: Final answer
    x = 543,832.80

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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.