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Finding the Fourth Proportional to 633,862.98, 874,737.81 and 347,376.96

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Solution

The fourth proportional to 633,862.98, 874,737.81 and 347,376.96 is: 479,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,862.98 : 874,737.81 = 347,376.96 : x
  2. Step 2: Convert to fraction form
    633,862.98/874,737.81 = 347,376.96/x
  3. Step 3: Cross multiply
    633,862.98x = 874,737.81 × 347,376.96
  4. Step 4: Simplify right side
    633,862.98x = 303,863,761,234.86
  5. Step 5: Solve for x
    x = 303,863,761,234.86/633,862.98
  6. Step 6: Final answer
    x = 479,383.98

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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.