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Finding the Fourth Proportional to 633,818.57, 874,692.02 and 347,338.66

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Solution

The fourth proportional to 633,818.57, 874,692.02 and 347,338.66 is: 479,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,818.57 : 874,692.02 = 347,338.66 : x
  2. Step 2: Convert to fraction form
    633,818.57/874,692.02 = 347,338.66/x
  3. Step 3: Cross multiply
    633,818.57x = 874,692.02 × 347,338.66
  4. Step 4: Simplify right side
    633,818.57x = 303,814,350,047.31
  5. Step 5: Solve for x
    x = 303,814,350,047.31/633,818.57
  6. Step 6: Final answer
    x = 479,339.62

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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.