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Finding the Fourth Proportional to 267,910,505.40, 401,865,758.10 and 264,327,324.60

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Solution

The fourth proportional to 267,910,505.40, 401,865,758.10 and 264,327,324.60 is: 396,490,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,910,505.40 : 401,865,758.10 = 264,327,324.60 : x
  2. Step 2: Convert to fraction form
    267,910,505.40/401,865,758.10 = 264,327,324.60/x
  3. Step 3: Cross multiply
    267,910,505.40x = 401,865,758.10 × 264,327,324.60
  4. Step 4: Simplify right side
    267,910,505.40x = 106,224,100,686,923,776
  5. Step 5: Solve for x
    x = 106,224,100,686,923,776/267,910,505.40
  6. Step 6: Final answer
    x = 396,490,986.90

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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.