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Finding the Fourth Proportional to 482,125.64, 665,288.55 and 267,247.40

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Solution

The fourth proportional to 482,125.64, 665,288.55 and 267,247.40 is: 368,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,125.64 : 665,288.55 = 267,247.40 : x
  2. Step 2: Convert to fraction form
    482,125.64/665,288.55 = 267,247.40/x
  3. Step 3: Cross multiply
    482,125.64x = 665,288.55 × 267,247.40
  4. Step 4: Simplify right side
    482,125.64x = 177,796,631,910.83
  5. Step 5: Solve for x
    x = 177,796,631,910.83/482,125.64
  6. Step 6: Final answer
    x = 368,776.56

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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.