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Finding the Fourth Proportional to 573,137.20, 860,580.60 and 440,167.60

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Solution

The fourth proportional to 573,137.20, 860,580.60 and 440,167.60 is: 660,923.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,137.20 : 860,580.60 = 440,167.60 : x
  2. Step 2: Convert to fraction form
    573,137.20/860,580.60 = 440,167.60/x
  3. Step 3: Cross multiply
    573,137.20x = 860,580.60 × 440,167.60
  4. Step 4: Simplify right side
    573,137.20x = 378,799,697,308.56
  5. Step 5: Solve for x
    x = 378,799,697,308.56/573,137.20
  6. Step 6: Final answer
    x = 660,923.24

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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.