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Finding the Fourth Proportional to 396,045.22, 593,830.59 and 126,056.74

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Solution

The fourth proportional to 396,045.22, 593,830.59 and 126,056.74 is: 189,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,045.22 : 593,830.59 = 126,056.74 : x
  2. Step 2: Convert to fraction form
    396,045.22/593,830.59 = 126,056.74/x
  3. Step 3: Cross multiply
    396,045.22x = 593,830.59 × 126,056.74
  4. Step 4: Simplify right side
    396,045.22x = 74,856,348,287.68
  5. Step 5: Solve for x
    x = 74,856,348,287.68/396,045.22
  6. Step 6: Final answer
    x = 189,009.60

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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.