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Finding the Fourth Proportional to 262,813.39, 393,647.49 and 172,754.44

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Solution

The fourth proportional to 262,813.39, 393,647.49 and 172,754.44 is: 258,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,813.39 : 393,647.49 = 172,754.44 : x
  2. Step 2: Convert to fraction form
    262,813.39/393,647.49 = 172,754.44/x
  3. Step 3: Cross multiply
    262,813.39x = 393,647.49 × 172,754.44
  4. Step 4: Simplify right side
    262,813.39x = 68,004,350,708.24
  5. Step 5: Solve for x
    x = 68,004,350,708.24/262,813.39
  6. Step 6: Final answer
    x = 258,755.27

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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.