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Finding the Fourth Proportional to 488,034.20, 733,217.70 and 436,712.60

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Solution

The fourth proportional to 488,034.20, 733,217.70 and 436,712.60 is: 656,112.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,034.20 : 733,217.70 = 436,712.60 : x
  2. Step 2: Convert to fraction form
    488,034.20/733,217.70 = 436,712.60/x
  3. Step 3: Cross multiply
    488,034.20x = 733,217.70 × 436,712.60
  4. Step 4: Simplify right side
    488,034.20x = 320,205,408,133.02
  5. Step 5: Solve for x
    x = 320,205,408,133.02/488,034.20
  6. Step 6: Final answer
    x = 656,112.64

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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.