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Finding the Fourth Proportional to 353,696.43, 487,170.96 and 271,868.01

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Solution

The fourth proportional to 353,696.43, 487,170.96 and 271,868.01 is: 374,462.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,696.43 : 487,170.96 = 271,868.01 : x
  2. Step 2: Convert to fraction form
    353,696.43/487,170.96 = 271,868.01/x
  3. Step 3: Cross multiply
    353,696.43x = 487,170.96 × 271,868.01
  4. Step 4: Simplify right side
    353,696.43x = 132,446,199,424.99
  5. Step 5: Solve for x
    x = 132,446,199,424.99/353,696.43
  6. Step 6: Final answer
    x = 374,462.92

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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.