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Finding the Fourth Proportional to 353,567.43, 487,858.44 and 231,027.39

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Solution

The fourth proportional to 353,567.43, 487,858.44 and 231,027.39 is: 318,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,567.43 : 487,858.44 = 231,027.39 : x
  2. Step 2: Convert to fraction form
    353,567.43/487,858.44 = 231,027.39/x
  3. Step 3: Cross multiply
    353,567.43x = 487,858.44 × 231,027.39
  4. Step 4: Simplify right side
    353,567.43x = 112,708,662,949.02
  5. Step 5: Solve for x
    x = 112,708,662,949.02/353,567.43
  6. Step 6: Final answer
    x = 318,775.58

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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.