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Finding the Fourth Proportional to 633,273.72, 873,967.68 and 361,278.96

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Solution

The fourth proportional to 633,273.72, 873,967.68 and 361,278.96 is: 498,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,273.72 : 873,967.68 = 361,278.96 : x
  2. Step 2: Convert to fraction form
    633,273.72/873,967.68 = 361,278.96/x
  3. Step 3: Cross multiply
    633,273.72x = 873,967.68 × 361,278.96
  4. Step 4: Simplify right side
    633,273.72x = 315,746,134,504.01
  5. Step 5: Solve for x
    x = 315,746,134,504.01/633,273.72
  6. Step 6: Final answer
    x = 498,593.46

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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.