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Finding the Fourth Proportional to 262,300.20, 393,644.70 and 192,316.20

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Solution

The fourth proportional to 262,300.20, 393,644.70 and 192,316.20 is: 288,616.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,300.20 : 393,644.70 = 192,316.20 : x
  2. Step 2: Convert to fraction form
    262,300.20/393,644.70 = 192,316.20/x
  3. Step 3: Cross multiply
    262,300.20x = 393,644.70 × 192,316.20
  4. Step 4: Simplify right side
    262,300.20x = 75,704,252,854.14
  5. Step 5: Solve for x
    x = 75,704,252,854.14/262,300.20
  6. Step 6: Final answer
    x = 288,616.83

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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.