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Finding the Fourth Proportional to 548,791.40, 757,449.78 and 334,000.64

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Solution

The fourth proportional to 548,791.40, 757,449.78 and 334,000.64 is: 460,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,791.40 : 757,449.78 = 334,000.64 : x
  2. Step 2: Convert to fraction form
    548,791.40/757,449.78 = 334,000.64/x
  3. Step 3: Cross multiply
    548,791.40x = 757,449.78 × 334,000.64
  4. Step 4: Simplify right side
    548,791.40x = 252,988,711,287.86
  5. Step 5: Solve for x
    x = 252,988,711,287.86/548,791.40
  6. Step 6: Final answer
    x = 460,992.49

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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.