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Finding the Fourth Proportional to 349,642.87, 482,042.62 and 228,576.02

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Solution

The fourth proportional to 349,642.87, 482,042.62 and 228,576.02 is: 315,131.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,642.87 : 482,042.62 = 228,576.02 : x
  2. Step 2: Convert to fraction form
    349,642.87/482,042.62 = 228,576.02/x
  3. Step 3: Cross multiply
    349,642.87x = 482,042.62 × 228,576.02
  4. Step 4: Simplify right side
    349,642.87x = 110,183,380,568.32
  5. Step 5: Solve for x
    x = 110,183,380,568.32/349,642.87
  6. Step 6: Final answer
    x = 315,131.21

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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.