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Finding the Fourth Proportional to 262,301.20, 393,646.20 and 192,317.20

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Solution

The fourth proportional to 262,301.20, 393,646.20 and 192,317.20 is: 288,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,301.20 : 393,646.20 = 192,317.20 : x
  2. Step 2: Convert to fraction form
    262,301.20/393,646.20 = 192,317.20/x
  3. Step 3: Cross multiply
    262,301.20x = 393,646.20 × 192,317.20
  4. Step 4: Simplify right side
    262,301.20x = 75,704,934,974.64
  5. Step 5: Solve for x
    x = 75,704,934,974.64/262,301.20
  6. Step 6: Final answer
    x = 288,618.33

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1.5x scale

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.