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Finding the Fourth Proportional to 508,748.20, 763,230.24 and 193,198.12

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Solution

The fourth proportional to 508,748.20, 763,230.24 and 193,198.12 is: 289,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,748.20 : 763,230.24 = 193,198.12 : x
  2. Step 2: Convert to fraction form
    508,748.20/763,230.24 = 193,198.12/x
  3. Step 3: Cross multiply
    508,748.20x = 763,230.24 × 193,198.12
  4. Step 4: Simplify right side
    508,748.20x = 147,454,647,495.15
  5. Step 5: Solve for x
    x = 147,454,647,495.15/508,748.20
  6. Step 6: Final answer
    x = 289,838.17

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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.