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Finding the Fourth Proportional to 396,335.70, 594,575.55 and 130,022.10

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Solution

The fourth proportional to 396,335.70, 594,575.55 and 130,022.10 is: 195,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,335.70 : 594,575.55 = 130,022.10 : x
  2. Step 2: Convert to fraction form
    396,335.70/594,575.55 = 130,022.10/x
  3. Step 3: Cross multiply
    396,335.70x = 594,575.55 × 130,022.10
  4. Step 4: Simplify right side
    396,335.70x = 77,307,961,619.66
  5. Step 5: Solve for x
    x = 77,307,961,619.66/396,335.70
  6. Step 6: Final answer
    x = 195,056.77

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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.