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Finding the Fourth Proportional to 449,997.60, 674,996.40 and 201,165.60

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Solution

The fourth proportional to 449,997.60, 674,996.40 and 201,165.60 is: 301,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,997.60 : 674,996.40 = 201,165.60 : x
  2. Step 2: Convert to fraction form
    449,997.60/674,996.40 = 201,165.60/x
  3. Step 3: Cross multiply
    449,997.60x = 674,996.40 × 201,165.60
  4. Step 4: Simplify right side
    449,997.60x = 135,786,055,803.84
  5. Step 5: Solve for x
    x = 135,786,055,803.84/449,997.60
  6. Step 6: Final answer
    x = 301,748.40

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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.