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Finding the Fourth Proportional to 374,722.98, 517,104.74 and 213,629.92

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Solution

The fourth proportional to 374,722.98, 517,104.74 and 213,629.92 is: 294,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,722.98 : 517,104.74 = 213,629.92 : x
  2. Step 2: Convert to fraction form
    374,722.98/517,104.74 = 213,629.92/x
  3. Step 3: Cross multiply
    374,722.98x = 517,104.74 × 213,629.92
  4. Step 4: Simplify right side
    374,722.98x = 110,469,044,237.82
  5. Step 5: Solve for x
    x = 110,469,044,237.82/374,722.98
  6. Step 6: Final answer
    x = 294,801.89

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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.