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Finding the Fourth Proportional to 573,142.20, 860,588.10 and 440,172.60

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Solution

The fourth proportional to 573,142.20, 860,588.10 and 440,172.60 is: 660,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,142.20 : 860,588.10 = 440,172.60 : x
  2. Step 2: Convert to fraction form
    573,142.20/860,588.10 = 440,172.60/x
  3. Step 3: Cross multiply
    573,142.20x = 860,588.10 × 440,172.60
  4. Step 4: Simplify right side
    573,142.20x = 378,807,301,506.06
  5. Step 5: Solve for x
    x = 378,807,301,506.06/573,142.20
  6. Step 6: Final answer
    x = 660,930.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.