Home / 403,853.18-557,321.19-222,571.64

Finding the Fourth Proportional to 403,853.18, 557,321.19 and 222,571.64

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Solution

The fourth proportional to 403,853.18, 557,321.19 and 222,571.64 is: 307,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,853.18 : 557,321.19 = 222,571.64 : x
  2. Step 2: Convert to fraction form
    403,853.18/557,321.19 = 222,571.64/x
  3. Step 3: Cross multiply
    403,853.18x = 557,321.19 × 222,571.64
  4. Step 4: Simplify right side
    403,853.18x = 124,043,891,265.05
  5. Step 5: Solve for x
    x = 124,043,891,265.05/403,853.18
  6. Step 6: Final answer
    x = 307,150.96

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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.