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Finding the Fourth Proportional to 326,826.64, 451,069.86 and 199,575.64

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Solution

The fourth proportional to 326,826.64, 451,069.86 and 199,575.64 is: 275,444.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,826.64 : 451,069.86 = 199,575.64 : x
  2. Step 2: Convert to fraction form
    326,826.64/451,069.86 = 199,575.64/x
  3. Step 3: Cross multiply
    326,826.64x = 451,069.86 × 199,575.64
  4. Step 4: Simplify right side
    326,826.64x = 90,022,555,994.21
  5. Step 5: Solve for x
    x = 90,022,555,994.21/326,826.64
  6. Step 6: Final answer
    x = 275,444.36

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1.5x scale

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.