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Finding the Fourth Proportional to 573,692.40, 860,423.40 and 274,172.40

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Solution

The fourth proportional to 573,692.40, 860,423.40 and 274,172.40 is: 411,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,692.40 : 860,423.40 = 274,172.40 : x
  2. Step 2: Convert to fraction form
    573,692.40/860,423.40 = 274,172.40/x
  3. Step 3: Cross multiply
    573,692.40x = 860,423.40 × 274,172.40
  4. Step 4: Simplify right side
    573,692.40x = 235,904,348,594.16
  5. Step 5: Solve for x
    x = 235,904,348,594.16/573,692.40
  6. Step 6: Final answer
    x = 411,203.54

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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.