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Finding the Fourth Proportional to 299,146.60, 448,428.30 and 267,653.80

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Solution

The fourth proportional to 299,146.60, 448,428.30 and 267,653.80 is: 401,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,146.60 : 448,428.30 = 267,653.80 : x
  2. Step 2: Convert to fraction form
    299,146.60/448,428.30 = 267,653.80/x
  3. Step 3: Cross multiply
    299,146.60x = 448,428.30 × 267,653.80
  4. Step 4: Simplify right side
    299,146.60x = 120,023,538,522.54
  5. Step 5: Solve for x
    x = 120,023,538,522.54/299,146.60
  6. Step 6: Final answer
    x = 401,219.80

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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.