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Finding the Fourth Proportional to 396,074.20, 594,111.30 and 196,317.40

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Solution

The fourth proportional to 396,074.20, 594,111.30 and 196,317.40 is: 294,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,074.20 : 594,111.30 = 196,317.40 : x
  2. Step 2: Convert to fraction form
    396,074.20/594,111.30 = 196,317.40/x
  3. Step 3: Cross multiply
    396,074.20x = 594,111.30 × 196,317.40
  4. Step 4: Simplify right side
    396,074.20x = 116,634,385,726.62
  5. Step 5: Solve for x
    x = 116,634,385,726.62/396,074.20
  6. Step 6: Final answer
    x = 294,476.10

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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.