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Finding the Fourth Proportional to 407,321.67, 562,121.60 and 271,136.43

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Solution

The fourth proportional to 407,321.67, 562,121.60 and 271,136.43 is: 374,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,321.67 : 562,121.60 = 271,136.43 : x
  2. Step 2: Convert to fraction form
    407,321.67/562,121.60 = 271,136.43/x
  3. Step 3: Cross multiply
    407,321.67x = 562,121.60 × 271,136.43
  4. Step 4: Simplify right side
    407,321.67x = 152,411,642,494.21
  5. Step 5: Solve for x
    x = 152,411,642,494.21/407,321.67
  6. Step 6: Final answer
    x = 374,180.05

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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.