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Finding the Fourth Proportional to 396,003.60, 593,659.80 and 238,064.40

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Solution

The fourth proportional to 396,003.60, 593,659.80 and 238,064.40 is: 356,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,003.60 : 593,659.80 = 238,064.40 : x
  2. Step 2: Convert to fraction form
    396,003.60/593,659.80 = 238,064.40/x
  3. Step 3: Cross multiply
    396,003.60x = 593,659.80 × 238,064.40
  4. Step 4: Simplify right side
    396,003.60x = 141,329,264,091.12
  5. Step 5: Solve for x
    x = 141,329,264,091.12/396,003.60
  6. Step 6: Final answer
    x = 356,888.84

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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.