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Finding the Fourth Proportional to 476,158.89, 656,996.62 and 274,838.25

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Solution

The fourth proportional to 476,158.89, 656,996.62 and 274,838.25 is: 379,217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,158.89 : 656,996.62 = 274,838.25 : x
  2. Step 2: Convert to fraction form
    476,158.89/656,996.62 = 274,838.25/x
  3. Step 3: Cross multiply
    476,158.89x = 656,996.62 × 274,838.25
  4. Step 4: Simplify right side
    476,158.89x = 180,567,801,296.72
  5. Step 5: Solve for x
    x = 180,567,801,296.72/476,158.89
  6. Step 6: Final answer
    x = 379,217.54

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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.