Home / 378,276.75-522,006.19-206,190.93

Finding the Fourth Proportional to 378,276.75, 522,006.19 and 206,190.93

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Solution

The fourth proportional to 378,276.75, 522,006.19 and 206,190.93 is: 284,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,276.75 : 522,006.19 = 206,190.93 : x
  2. Step 2: Convert to fraction form
    378,276.75/522,006.19 = 206,190.93/x
  3. Step 3: Cross multiply
    378,276.75x = 522,006.19 × 206,190.93
  4. Step 4: Simplify right side
    378,276.75x = 107,632,941,781.86
  5. Step 5: Solve for x
    x = 107,632,941,781.86/378,276.75
  6. Step 6: Final answer
    x = 284,534.91

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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.