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Finding the Fourth Proportional to 326,082.20, 488,540.10 and 201,277.40

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Solution

The fourth proportional to 326,082.20, 488,540.10 and 201,277.40 is: 301,556.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,082.20 : 488,540.10 = 201,277.40 : x
  2. Step 2: Convert to fraction form
    326,082.20/488,540.10 = 201,277.40/x
  3. Step 3: Cross multiply
    326,082.20x = 488,540.10 × 201,277.40
  4. Step 4: Simplify right side
    326,082.20x = 98,332,081,123.74
  5. Step 5: Solve for x
    x = 98,332,081,123.74/326,082.20
  6. Step 6: Final answer
    x = 301,556.11

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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.