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Finding the Fourth Proportional to 352,760.87, 486,346.77 and 254,561.71

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Solution

The fourth proportional to 352,760.87, 486,346.77 and 254,561.71 is: 350,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,760.87 : 486,346.77 = 254,561.71 : x
  2. Step 2: Convert to fraction form
    352,760.87/486,346.77 = 254,561.71/x
  3. Step 3: Cross multiply
    352,760.87x = 486,346.77 × 254,561.71
  4. Step 4: Simplify right side
    352,760.87x = 123,805,262,992.44
  5. Step 5: Solve for x
    x = 123,805,262,992.44/352,760.87
  6. Step 6: Final answer
    x = 350,960.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.