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Finding the Fourth Proportional to 573,551.20, 860,441.64 and 321,190.57

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Solution

The fourth proportional to 573,551.20, 860,441.64 and 321,190.57 is: 481,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,551.20 : 860,441.64 = 321,190.57 : x
  2. Step 2: Convert to fraction form
    573,551.20/860,441.64 = 321,190.57/x
  3. Step 3: Cross multiply
    573,551.20x = 860,441.64 × 321,190.57
  4. Step 4: Simplify right side
    573,551.20x = 276,365,740,803.34
  5. Step 5: Solve for x
    x = 276,365,740,803.34/573,551.20
  6. Step 6: Final answer
    x = 481,850.17

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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.