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Finding the Fourth Proportional to 403,889.22, 557,344.37 and 222,600.60

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Solution

The fourth proportional to 403,889.22, 557,344.37 and 222,600.60 is: 307,176.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,889.22 : 557,344.37 = 222,600.60 : x
  2. Step 2: Convert to fraction form
    403,889.22/557,344.37 = 222,600.60/x
  3. Step 3: Cross multiply
    403,889.22x = 557,344.37 × 222,600.60
  4. Step 4: Simplify right side
    403,889.22x = 124,065,190,055.62
  5. Step 5: Solve for x
    x = 124,065,190,055.62/403,889.22
  6. Step 6: Final answer
    x = 307,176.28

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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.