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Finding the Fourth Proportional to 374,626.80, 561,940.20 and 331,324.20

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Solution

The fourth proportional to 374,626.80, 561,940.20 and 331,324.20 is: 496,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,626.80 : 561,940.20 = 331,324.20 : x
  2. Step 2: Convert to fraction form
    374,626.80/561,940.20 = 331,324.20/x
  3. Step 3: Cross multiply
    374,626.80x = 561,940.20 × 331,324.20
  4. Step 4: Simplify right side
    374,626.80x = 186,184,387,212.84
  5. Step 5: Solve for x
    x = 186,184,387,212.84/374,626.80
  6. Step 6: Final answer
    x = 496,986.30

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Similar ratio
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1.5x scale

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.