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Finding the Fourth Proportional to 633,036.78, 873,673.92 and 361,042.33

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Solution

The fourth proportional to 633,036.78, 873,673.92 and 361,042.33 is: 498,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,036.78 : 873,673.92 = 361,042.33 : x
  2. Step 2: Convert to fraction form
    633,036.78/873,673.92 = 361,042.33/x
  3. Step 3: Cross multiply
    633,036.78x = 873,673.92 × 361,042.33
  4. Step 4: Simplify right side
    633,036.78x = 315,433,267,737.03
  5. Step 5: Solve for x
    x = 315,433,267,737.03/633,036.78
  6. Step 6: Final answer
    x = 498,285.85

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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.