Home / 403,906.19-557,387.75-222,618.21

Finding the Fourth Proportional to 403,906.19, 557,387.75 and 222,618.21

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Solution

The fourth proportional to 403,906.19, 557,387.75 and 222,618.21 is: 307,211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,906.19 : 557,387.75 = 222,618.21 : x
  2. Step 2: Convert to fraction form
    403,906.19/557,387.75 = 222,618.21/x
  3. Step 3: Cross multiply
    403,906.19x = 557,387.75 × 222,618.21
  4. Step 4: Simplify right side
    403,906.19x = 124,084,662,067.84
  5. Step 5: Solve for x
    x = 124,084,662,067.84/403,906.19
  6. Step 6: Final answer
    x = 307,211.59

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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.