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Finding the Fourth Proportional to 547,736.40, 821,604.60 and 192,747.60

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Solution

The fourth proportional to 547,736.40, 821,604.60 and 192,747.60 is: 289,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,736.40 : 821,604.60 = 192,747.60 : x
  2. Step 2: Convert to fraction form
    547,736.40/821,604.60 = 192,747.60/x
  3. Step 3: Cross multiply
    547,736.40x = 821,604.60 × 192,747.60
  4. Step 4: Simplify right side
    547,736.40x = 158,362,314,798.96
  5. Step 5: Solve for x
    x = 158,362,314,798.96/547,736.40
  6. Step 6: Final answer
    x = 289,121.40

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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.