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Finding the Fourth Proportional to 326,807.64, 451,043.64 and 199,556.64

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Solution

The fourth proportional to 326,807.64, 451,043.64 and 199,556.64 is: 275,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,807.64 : 451,043.64 = 199,556.64 : x
  2. Step 2: Convert to fraction form
    326,807.64/451,043.64 = 199,556.64/x
  3. Step 3: Cross multiply
    326,807.64x = 451,043.64 × 199,556.64
  4. Step 4: Simplify right side
    326,807.64x = 90,008,753,291.77
  5. Step 5: Solve for x
    x = 90,008,753,291.77/326,807.64
  6. Step 6: Final answer
    x = 275,418.14

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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.