Home / 694,285.86-958,069.38-388,309.26

Finding the Fourth Proportional to 694,285.86, 958,069.38 and 388,309.26

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Solution

The fourth proportional to 694,285.86, 958,069.38 and 388,309.26 is: 535,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,285.86 : 958,069.38 = 388,309.26 : x
  2. Step 2: Convert to fraction form
    694,285.86/958,069.38 = 388,309.26/x
  3. Step 3: Cross multiply
    694,285.86x = 958,069.38 × 388,309.26
  4. Step 4: Simplify right side
    694,285.86x = 372,027,211,976.46
  5. Step 5: Solve for x
    x = 372,027,211,976.46/694,285.86
  6. Step 6: Final answer
    x = 535,841.55

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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.