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Finding the Fourth Proportional to 396,886.56, 593,956.88 and 245,021.28

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Solution

The fourth proportional to 396,886.56, 593,956.88 and 245,021.28 is: 366,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,886.56 : 593,956.88 = 245,021.28 : x
  2. Step 2: Convert to fraction form
    396,886.56/593,956.88 = 245,021.28/x
  3. Step 3: Cross multiply
    396,886.56x = 593,956.88 × 245,021.28
  4. Step 4: Simplify right side
    396,886.56x = 145,532,075,002.41
  5. Step 5: Solve for x
    x = 145,532,075,002.41/396,886.56
  6. Step 6: Final answer
    x = 366,684.31

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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.