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Finding the Fourth Proportional to 622,825.20, 859,537.44 and 361,233.63

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Solution

The fourth proportional to 622,825.20, 859,537.44 and 361,233.63 is: 498,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,825.20 : 859,537.44 = 361,233.63 : x
  2. Step 2: Convert to fraction form
    622,825.20/859,537.44 = 361,233.63/x
  3. Step 3: Cross multiply
    622,825.20x = 859,537.44 × 361,233.63
  4. Step 4: Simplify right side
    622,825.20x = 310,493,829,572.11
  5. Step 5: Solve for x
    x = 310,493,829,572.11/622,825.20
  6. Step 6: Final answer
    x = 498,524.83

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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.