Home / 396,171.20-594,328.80-129,857.60

Finding the Fourth Proportional to 396,171.20, 594,328.80 and 129,857.60

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Solution

The fourth proportional to 396,171.20, 594,328.80 and 129,857.60 is: 194,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,171.20 : 594,328.80 = 129,857.60 : x
  2. Step 2: Convert to fraction form
    396,171.20/594,328.80 = 129,857.60/x
  3. Step 3: Cross multiply
    396,171.20x = 594,328.80 × 129,857.60
  4. Step 4: Simplify right side
    396,171.20x = 77,178,111,578.88
  5. Step 5: Solve for x
    x = 77,178,111,578.88/396,171.20
  6. Step 6: Final answer
    x = 194,810.00

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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.