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Finding the Fourth Proportional to 381,704.40, 572,556.60 and 364,208.40

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Solution

The fourth proportional to 381,704.40, 572,556.60 and 364,208.40 is: 546,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,704.40 : 572,556.60 = 364,208.40 : x
  2. Step 2: Convert to fraction form
    381,704.40/572,556.60 = 364,208.40/x
  3. Step 3: Cross multiply
    381,704.40x = 572,556.60 × 364,208.40
  4. Step 4: Simplify right side
    381,704.40x = 208,529,923,195.44
  5. Step 5: Solve for x
    x = 208,529,923,195.44/381,704.40
  6. Step 6: Final answer
    x = 546,312.60

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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.