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Finding the Fourth Proportional to 486,406.22, 671,212.58 and 271,559.93

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Solution

The fourth proportional to 486,406.22, 671,212.58 and 271,559.93 is: 374,737.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,406.22 : 671,212.58 = 271,559.93 : x
  2. Step 2: Convert to fraction form
    486,406.22/671,212.58 = 271,559.93/x
  3. Step 3: Cross multiply
    486,406.22x = 671,212.58 × 271,559.93
  4. Step 4: Simplify right side
    486,406.22x = 182,274,436,526.06
  5. Step 5: Solve for x
    x = 182,274,436,526.06/486,406.22
  6. Step 6: Final answer
    x = 374,737.06

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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.