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Finding the Fourth Proportional to 396,344.32, 594,710.88 and 185,999.36

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Solution

The fourth proportional to 396,344.32, 594,710.88 and 185,999.36 is: 279,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,344.32 : 594,710.88 = 185,999.36 : x
  2. Step 2: Convert to fraction form
    396,344.32/594,710.88 = 185,999.36/x
  3. Step 3: Cross multiply
    396,344.32x = 594,710.88 × 185,999.36
  4. Step 4: Simplify right side
    396,344.32x = 110,615,843,065.04
  5. Step 5: Solve for x
    x = 110,615,843,065.04/396,344.32
  6. Step 6: Final answer
    x = 279,090.27

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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.