Home / 320,976.09-442,961.01-177,736.23

Finding the Fourth Proportional to 320,976.09, 442,961.01 and 177,736.23

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Solution

The fourth proportional to 320,976.09, 442,961.01 and 177,736.23 is: 245,283.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,976.09 : 442,961.01 = 177,736.23 : x
  2. Step 2: Convert to fraction form
    320,976.09/442,961.01 = 177,736.23/x
  3. Step 3: Cross multiply
    320,976.09x = 442,961.01 × 177,736.23
  4. Step 4: Simplify right side
    320,976.09x = 78,730,219,954.39
  5. Step 5: Solve for x
    x = 78,730,219,954.39/320,976.09
  6. Step 6: Final answer
    x = 245,283.75

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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.