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Finding the Fourth Proportional to 406,661.22, 561,191.76 and 222,899.67

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Solution

The fourth proportional to 406,661.22, 561,191.76 and 222,899.67 is: 307,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,661.22 : 561,191.76 = 222,899.67 : x
  2. Step 2: Convert to fraction form
    406,661.22/561,191.76 = 222,899.67/x
  3. Step 3: Cross multiply
    406,661.22x = 561,191.76 × 222,899.67
  4. Step 4: Simplify right side
    406,661.22x = 125,089,458,110.72
  5. Step 5: Solve for x
    x = 125,089,458,110.72/406,661.22
  6. Step 6: Final answer
    x = 307,601.15

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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.