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Finding the Fourth Proportional to 464,380.56, 640,791.54 and 260,431.88

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Solution

The fourth proportional to 464,380.56, 640,791.54 and 260,431.88 is: 359,365.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,380.56 : 640,791.54 = 260,431.88 : x
  2. Step 2: Convert to fraction form
    464,380.56/640,791.54 = 260,431.88/x
  3. Step 3: Cross multiply
    464,380.56x = 640,791.54 × 260,431.88
  4. Step 4: Simplify right side
    464,380.56x = 166,882,542,246.34
  5. Step 5: Solve for x
    x = 166,882,542,246.34/464,380.56
  6. Step 6: Final answer
    x = 359,365.91

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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.