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Finding the Fourth Proportional to 426,591.78, 588,684.55 and 235,601.07

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Solution

The fourth proportional to 426,591.78, 588,684.55 and 235,601.07 is: 325,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,591.78 : 588,684.55 = 235,601.07 : x
  2. Step 2: Convert to fraction form
    426,591.78/588,684.55 = 235,601.07/x
  3. Step 3: Cross multiply
    426,591.78x = 588,684.55 × 235,601.07
  4. Step 4: Simplify right side
    426,591.78x = 138,694,709,872.47
  5. Step 5: Solve for x
    x = 138,694,709,872.47/426,591.78
  6. Step 6: Final answer
    x = 325,122.79

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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.