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Finding the Fourth Proportional to 486,556.85, 671,449.43 and 271,696.25

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Solution

The fourth proportional to 486,556.85, 671,449.43 and 271,696.25 is: 374,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,556.85 : 671,449.43 = 271,696.25 : x
  2. Step 2: Convert to fraction form
    486,556.85/671,449.43 = 271,696.25/x
  3. Step 3: Cross multiply
    486,556.85x = 671,449.43 × 271,696.25
  4. Step 4: Simplify right side
    486,556.85x = 182,430,292,195.64
  5. Step 5: Solve for x
    x = 182,430,292,195.64/486,556.85
  6. Step 6: Final answer
    x = 374,941.37

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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.