Home / 1,211,622.78-1,672,033.94-667,757.38

Finding the Fourth Proportional to 1,211,622.78, 1,672,033.94 and 667,757.38

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Solution

The fourth proportional to 1,211,622.78, 1,672,033.94 and 667,757.38 is: 921,502.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,622.78 : 1,672,033.94 = 667,757.38 : x
  2. Step 2: Convert to fraction form
    1,211,622.78/1,672,033.94 = 667,757.38/x
  3. Step 3: Cross multiply
    1,211,622.78x = 1,672,033.94 × 667,757.38
  4. Step 4: Simplify right side
    1,211,622.78x = 1,116,513,003,045.48
  5. Step 5: Solve for x
    x = 1,116,513,003,045.48/1,211,622.78
  6. Step 6: Final answer
    x = 921,502.16

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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.