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Finding the Fourth Proportional to 504,399.46, 696,072.21 and 274,958.62

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Solution

The fourth proportional to 504,399.46, 696,072.21 and 274,958.62 is: 379,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,399.46 : 696,072.21 = 274,958.62 : x
  2. Step 2: Convert to fraction form
    504,399.46/696,072.21 = 274,958.62/x
  3. Step 3: Cross multiply
    504,399.46x = 696,072.21 × 274,958.62
  4. Step 4: Simplify right side
    504,399.46x = 191,391,054,281.95
  5. Step 5: Solve for x
    x = 191,391,054,281.95/504,399.46
  6. Step 6: Final answer
    x = 379,443.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.