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Finding the Fourth Proportional to 375,804.12, 518,630.88 and 222,932.82

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Solution

The fourth proportional to 375,804.12, 518,630.88 and 222,932.82 is: 307,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,804.12 : 518,630.88 = 222,932.82 : x
  2. Step 2: Convert to fraction form
    375,804.12/518,630.88 = 222,932.82/x
  3. Step 3: Cross multiply
    375,804.12x = 518,630.88 × 222,932.82
  4. Step 4: Simplify right side
    375,804.12x = 115,619,844,617.48
  5. Step 5: Solve for x
    x = 115,619,844,617.48/375,804.12
  6. Step 6: Final answer
    x = 307,659.86

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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.