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Finding the Fourth Proportional to 573,640.40, 860,460.60 and 441,189.20

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Solution

The fourth proportional to 573,640.40, 860,460.60 and 441,189.20 is: 661,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,640.40 : 860,460.60 = 441,189.20 : x
  2. Step 2: Convert to fraction form
    573,640.40/860,460.60 = 441,189.20/x
  3. Step 3: Cross multiply
    573,640.40x = 860,460.60 × 441,189.20
  4. Step 4: Simplify right side
    573,640.40x = 379,625,923,745.52
  5. Step 5: Solve for x
    x = 379,625,923,745.52/573,640.40
  6. Step 6: Final answer
    x = 661,783.80

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Similar ratio
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1.5x scale

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.