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Finding the Fourth Proportional to 632,910.90, 873,422.49 and 360,992.56

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Solution

The fourth proportional to 632,910.90, 873,422.49 and 360,992.56 is: 498,172.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,910.90 : 873,422.49 = 360,992.56 : x
  2. Step 2: Convert to fraction form
    632,910.90/873,422.49 = 360,992.56/x
  3. Step 3: Cross multiply
    632,910.90x = 873,422.49 × 360,992.56
  4. Step 4: Simplify right side
    632,910.90x = 315,299,020,378.36
  5. Step 5: Solve for x
    x = 315,299,020,378.36/632,910.90
  6. Step 6: Final answer
    x = 498,172.84

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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.