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Finding the Fourth Proportional to 374,530.80, 561,796.20 and 327,874.80

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Solution

The fourth proportional to 374,530.80, 561,796.20 and 327,874.80 is: 491,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,530.80 : 561,796.20 = 327,874.80 : x
  2. Step 2: Convert to fraction form
    374,530.80/561,796.20 = 327,874.80/x
  3. Step 3: Cross multiply
    374,530.80x = 561,796.20 × 327,874.80
  4. Step 4: Simplify right side
    374,530.80x = 184,198,816,715.76
  5. Step 5: Solve for x
    x = 184,198,816,715.76/374,530.80
  6. Step 6: Final answer
    x = 491,812.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.