Home / 1,273,908.75-1,910,625.72-409,358.66

Finding the Fourth Proportional to 1,273,908.75, 1,910,625.72 and 409,358.66

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Solution

The fourth proportional to 1,273,908.75, 1,910,625.72 and 409,358.66 is: 613,961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,908.75 : 1,910,625.72 = 409,358.66 : x
  2. Step 2: Convert to fraction form
    1,273,908.75/1,910,625.72 = 409,358.66/x
  3. Step 3: Cross multiply
    1,273,908.75x = 1,910,625.72 × 409,358.66
  4. Step 4: Simplify right side
    1,273,908.75x = 782,131,174,947.61
  5. Step 5: Solve for x
    x = 782,131,174,947.61/1,273,908.75
  6. Step 6: Final answer
    x = 613,961.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.