Home / 694,063.18-957,826.87-388,151.09

Finding the Fourth Proportional to 694,063.18, 957,826.87 and 388,151.09

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Solution

The fourth proportional to 694,063.18, 957,826.87 and 388,151.09 is: 535,659.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,063.18 : 957,826.87 = 388,151.09 : x
  2. Step 2: Convert to fraction form
    694,063.18/957,826.87 = 388,151.09/x
  3. Step 3: Cross multiply
    694,063.18x = 957,826.87 × 388,151.09
  4. Step 4: Simplify right side
    694,063.18x = 371,781,543,637.48
  5. Step 5: Solve for x
    x = 371,781,543,637.48/694,063.18
  6. Step 6: Final answer
    x = 535,659.51

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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.