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Finding the Fourth Proportional to 396,067.40, 594,101.10 and 352,521.80

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Solution

The fourth proportional to 396,067.40, 594,101.10 and 352,521.80 is: 528,782.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,067.40 : 594,101.10 = 352,521.80 : x
  2. Step 2: Convert to fraction form
    396,067.40/594,101.10 = 352,521.80/x
  3. Step 3: Cross multiply
    396,067.40x = 594,101.10 × 352,521.80
  4. Step 4: Simplify right side
    396,067.40x = 209,433,589,153.98
  5. Step 5: Solve for x
    x = 209,433,589,153.98/396,067.40
  6. Step 6: Final answer
    x = 528,782.70

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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.