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Finding the Fourth Proportional to 267,143,908.40, 400,715,862.60 and 267,143,908.40

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Solution

The fourth proportional to 267,143,908.40, 400,715,862.60 and 267,143,908.40 is: 400,715,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,143,908.40 : 400,715,862.60 = 267,143,908.40 : x
  2. Step 2: Convert to fraction form
    267,143,908.40/400,715,862.60 = 267,143,908.40/x
  3. Step 3: Cross multiply
    267,143,908.40x = 400,715,862.60 × 267,143,908.40
  4. Step 4: Simplify right side
    267,143,908.40x = 107,048,801,692,841,392
  5. Step 5: Solve for x
    x = 107,048,801,692,841,392/267,143,908.40
  6. Step 6: Final answer
    x = 400,715,862.60

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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.