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Finding the Fourth Proportional to 263,643.88, 395,298.22 and 223,676.64

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Solution

The fourth proportional to 263,643.88, 395,298.22 and 223,676.64 is: 335,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,643.88 : 395,298.22 = 223,676.64 : x
  2. Step 2: Convert to fraction form
    263,643.88/395,298.22 = 223,676.64/x
  3. Step 3: Cross multiply
    263,643.88x = 395,298.22 × 223,676.64
  4. Step 4: Simplify right side
    263,643.88x = 88,418,977,647.58
  5. Step 5: Solve for x
    x = 88,418,977,647.58/263,643.88
  6. Step 6: Final answer
    x = 335,372.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.