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Finding the Fourth Proportional to 665,075.20, 998,010.20 and 244,393.60

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Solution

The fourth proportional to 665,075.20, 998,010.20 and 244,393.60 is: 366,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,075.20 : 998,010.20 = 244,393.60 : x
  2. Step 2: Convert to fraction form
    665,075.20/998,010.20 = 244,393.60/x
  3. Step 3: Cross multiply
    665,075.20x = 998,010.20 × 244,393.60
  4. Step 4: Simplify right side
    665,075.20x = 243,907,305,614.72
  5. Step 5: Solve for x
    x = 243,907,305,614.72/665,075.20
  6. Step 6: Final answer
    x = 366,736.43

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Double scale
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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.