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Finding the Fourth Proportional to 349,642.62, 482,042.27 and 228,575.77

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Solution

The fourth proportional to 349,642.62, 482,042.27 and 228,575.77 is: 315,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,642.62 : 482,042.27 = 228,575.77 : x
  2. Step 2: Convert to fraction form
    349,642.62/482,042.27 = 228,575.77/x
  3. Step 3: Cross multiply
    349,642.62x = 482,042.27 × 228,575.77
  4. Step 4: Simplify right side
    349,642.62x = 110,183,180,627.59
  5. Step 5: Solve for x
    x = 110,183,180,627.59/349,642.62
  6. Step 6: Final answer
    x = 315,130.86

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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.