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Finding the Fourth Proportional to 633,431.54, 874,149.74 and 361,494.02

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Solution

The fourth proportional to 633,431.54, 874,149.74 and 361,494.02 is: 498,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,431.54 : 874,149.74 = 361,494.02 : x
  2. Step 2: Convert to fraction form
    633,431.54/874,149.74 = 361,494.02/x
  3. Step 3: Cross multiply
    633,431.54x = 874,149.74 × 361,494.02
  4. Step 4: Simplify right side
    633,431.54x = 315,999,905,328.06
  5. Step 5: Solve for x
    x = 315,999,905,328.06/633,431.54
  6. Step 6: Final answer
    x = 498,869.86

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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.