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Finding the Fourth Proportional to 372,605.27, 514,262.57 and 219,634.64

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Solution

The fourth proportional to 372,605.27, 514,262.57 and 219,634.64 is: 303,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,605.27 : 514,262.57 = 219,634.64 : x
  2. Step 2: Convert to fraction form
    372,605.27/514,262.57 = 219,634.64/x
  3. Step 3: Cross multiply
    372,605.27x = 514,262.57 × 219,634.64
  4. Step 4: Simplify right side
    372,605.27x = 112,949,873,921.87
  5. Step 5: Solve for x
    x = 112,949,873,921.87/372,605.27
  6. Step 6: Final answer
    x = 303,135.47

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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.