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Finding the Fourth Proportional to 374,492.40, 561,738.60 and 269,516.40

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Solution

The fourth proportional to 374,492.40, 561,738.60 and 269,516.40 is: 404,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,492.40 : 561,738.60 = 269,516.40 : x
  2. Step 2: Convert to fraction form
    374,492.40/561,738.60 = 269,516.40/x
  3. Step 3: Cross multiply
    374,492.40x = 561,738.60 × 269,516.40
  4. Step 4: Simplify right side
    374,492.40x = 151,397,765,213.04
  5. Step 5: Solve for x
    x = 151,397,765,213.04/374,492.40
  6. Step 6: Final answer
    x = 404,274.60

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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.