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Finding the Fourth Proportional to 396,604.35, 594,682.97 and 130,293.36

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Solution

The fourth proportional to 396,604.35, 594,682.97 and 130,293.36 is: 195,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,604.35 : 594,682.97 = 130,293.36 : x
  2. Step 2: Convert to fraction form
    396,604.35/594,682.97 = 130,293.36/x
  3. Step 3: Cross multiply
    396,604.35x = 594,682.97 × 130,293.36
  4. Step 4: Simplify right side
    396,604.35x = 77,483,243,457.05
  5. Step 5: Solve for x
    x = 77,483,243,457.05/396,604.35
  6. Step 6: Final answer
    x = 195,366.60

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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.