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Finding the Fourth Proportional to 633,692.25, 874,495.35 and 347,222.61

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Solution

The fourth proportional to 633,692.25, 874,495.35 and 347,222.61 is: 479,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,692.25 : 874,495.35 = 347,222.61 : x
  2. Step 2: Convert to fraction form
    633,692.25/874,495.35 = 347,222.61/x
  3. Step 3: Cross multiply
    633,692.25x = 874,495.35 × 347,222.61
  4. Step 4: Simplify right side
    633,692.25x = 303,644,557,859.86
  5. Step 5: Solve for x
    x = 303,644,557,859.86/633,692.25
  6. Step 6: Final answer
    x = 479,167.23

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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.