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Finding the Fourth Proportional to 372,772.75, 514,401.92 and 219,803.54

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Solution

The fourth proportional to 372,772.75, 514,401.92 and 219,803.54 is: 303,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,772.75 : 514,401.92 = 219,803.54 : x
  2. Step 2: Convert to fraction form
    372,772.75/514,401.92 = 219,803.54/x
  3. Step 3: Cross multiply
    372,772.75x = 514,401.92 × 219,803.54
  4. Step 4: Simplify right side
    372,772.75x = 113,067,364,281.94
  5. Step 5: Solve for x
    x = 113,067,364,281.94/372,772.75
  6. Step 6: Final answer
    x = 303,314.46

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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.