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Finding the Fourth Proportional to 396,076.40, 594,114.60 and 352,530.80

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Solution

The fourth proportional to 396,076.40, 594,114.60 and 352,530.80 is: 528,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,076.40 : 594,114.60 = 352,530.80 : x
  2. Step 2: Convert to fraction form
    396,076.40/594,114.60 = 352,530.80/x
  3. Step 3: Cross multiply
    396,076.40x = 594,114.60 × 352,530.80
  4. Step 4: Simplify right side
    396,076.40x = 209,443,695,229.68
  5. Step 5: Solve for x
    x = 209,443,695,229.68/396,076.40
  6. Step 6: Final answer
    x = 528,796.20

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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.