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Finding the Fourth Proportional to 550,467.72, 825,503.43 and 190,540.77

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Solution

The fourth proportional to 550,467.72, 825,503.43 and 190,540.77 is: 285,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,467.72 : 825,503.43 = 190,540.77 : x
  2. Step 2: Convert to fraction form
    550,467.72/825,503.43 = 190,540.77/x
  3. Step 3: Cross multiply
    550,467.72x = 825,503.43 × 190,540.77
  4. Step 4: Simplify right side
    550,467.72x = 157,292,059,189.84
  5. Step 5: Solve for x
    x = 157,292,059,189.84/550,467.72
  6. Step 6: Final answer
    x = 285,742.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.