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Finding the Fourth Proportional to 326,855.39, 450,930.72 and 189,008.84

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Solution

The fourth proportional to 326,855.39, 450,930.72 and 189,008.84 is: 260,757.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,855.39 : 450,930.72 = 189,008.84 : x
  2. Step 2: Convert to fraction form
    326,855.39/450,930.72 = 189,008.84/x
  3. Step 3: Cross multiply
    326,855.39x = 450,930.72 × 189,008.84
  4. Step 4: Simplify right side
    326,855.39x = 85,229,892,452.68
  5. Step 5: Solve for x
    x = 85,229,892,452.68/326,855.39
  6. Step 6: Final answer
    x = 260,757.19

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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.