Home / 880,791.15-1,215,434.24-518,144.94

Finding the Fourth Proportional to 880,791.15, 1,215,434.24 and 518,144.94

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Solution

The fourth proportional to 880,791.15, 1,215,434.24 and 518,144.94 is: 715,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,791.15 : 1,215,434.24 = 518,144.94 : x
  2. Step 2: Convert to fraction form
    880,791.15/1,215,434.24 = 518,144.94/x
  3. Step 3: Cross multiply
    880,791.15x = 1,215,434.24 × 518,144.94
  4. Step 4: Simplify right side
    880,791.15x = 629,771,098,768.02
  5. Step 5: Solve for x
    x = 629,771,098,768.02/880,791.15
  6. Step 6: Final answer
    x = 715,006.16

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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.