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Finding the Fourth Proportional to 486,622.62, 671,491.22 and 271,758.04

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Solution

The fourth proportional to 486,622.62, 671,491.22 and 271,758.04 is: 374,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,622.62 : 671,491.22 = 271,758.04 : x
  2. Step 2: Convert to fraction form
    486,622.62/671,491.22 = 271,758.04/x
  3. Step 3: Cross multiply
    486,622.62x = 671,491.22 × 271,758.04
  4. Step 4: Simplify right side
    486,622.62x = 182,483,134,786.89
  5. Step 5: Solve for x
    x = 182,483,134,786.89/486,622.62
  6. Step 6: Final answer
    x = 374,999.29

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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.