Home / 812,892.54-1,121,791.51-450,339.94

Finding the Fourth Proportional to 812,892.54, 1,121,791.51 and 450,339.94

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Solution

The fourth proportional to 812,892.54, 1,121,791.51 and 450,339.94 is: 621,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,892.54 : 1,121,791.51 = 450,339.94 : x
  2. Step 2: Convert to fraction form
    812,892.54/1,121,791.51 = 450,339.94/x
  3. Step 3: Cross multiply
    812,892.54x = 1,121,791.51 × 450,339.94
  4. Step 4: Simplify right side
    812,892.54x = 505,187,521,305.91
  5. Step 5: Solve for x
    x = 505,187,521,305.91/812,892.54
  6. Step 6: Final answer
    x = 621,469.01

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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.