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Finding the Fourth Proportional to 381,704.40, 572,556.60 and 224,110.80

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Solution

The fourth proportional to 381,704.40, 572,556.60 and 224,110.80 is: 336,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,704.40 : 572,556.60 = 224,110.80 : x
  2. Step 2: Convert to fraction form
    381,704.40/572,556.60 = 224,110.80/x
  3. Step 3: Cross multiply
    381,704.40x = 572,556.60 × 224,110.80
  4. Step 4: Simplify right side
    381,704.40x = 128,316,117,671.28
  5. Step 5: Solve for x
    x = 128,316,117,671.28/381,704.40
  6. Step 6: Final answer
    x = 336,166.20

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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.