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Finding the Fourth Proportional to 267,643.44, 368,420.76 and 231,328.20

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Solution

The fourth proportional to 267,643.44, 368,420.76 and 231,328.20 is: 318,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,643.44 : 368,420.76 = 231,328.20 : x
  2. Step 2: Convert to fraction form
    267,643.44/368,420.76 = 231,328.20/x
  3. Step 3: Cross multiply
    267,643.44x = 368,420.76 × 231,328.20
  4. Step 4: Simplify right side
    267,643.44x = 85,226,111,253.43
  5. Step 5: Solve for x
    x = 85,226,111,253.43/267,643.44
  6. Step 6: Final answer
    x = 318,431.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.