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Finding the Fourth Proportional to 267,431.93, 400,243.71 and 260,235.38

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Solution

The fourth proportional to 267,431.93, 400,243.71 and 260,235.38 is: 389,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,431.93 : 400,243.71 = 260,235.38 : x
  2. Step 2: Convert to fraction form
    267,431.93/400,243.71 = 260,235.38/x
  3. Step 3: Cross multiply
    267,431.93x = 400,243.71 × 260,235.38
  4. Step 4: Simplify right side
    267,431.93x = 104,157,573,964.46
  5. Step 5: Solve for x
    x = 104,157,573,964.46/267,431.93
  6. Step 6: Final answer
    x = 389,473.22

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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.