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Finding the Fourth Proportional to 633,532.43, 874,056.21 and 361,404.02

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Solution

The fourth proportional to 633,532.43, 874,056.21 and 361,404.02 is: 498,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,532.43 : 874,056.21 = 361,404.02 : x
  2. Step 2: Convert to fraction form
    633,532.43/874,056.21 = 361,404.02/x
  3. Step 3: Cross multiply
    633,532.43x = 874,056.21 × 361,404.02
  4. Step 4: Simplify right side
    633,532.43x = 315,887,427,999.96
  5. Step 5: Solve for x
    x = 315,887,427,999.96/633,532.43
  6. Step 6: Final answer
    x = 498,612.88

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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.