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Finding the Fourth Proportional to 482,392.28, 665,741.20 and 267,601.60

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Solution

The fourth proportional to 482,392.28, 665,741.20 and 267,601.60 is: 369,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,392.28 : 665,741.20 = 267,601.60 : x
  2. Step 2: Convert to fraction form
    482,392.28/665,741.20 = 267,601.60/x
  3. Step 3: Cross multiply
    482,392.28x = 665,741.20 × 267,601.60
  4. Step 4: Simplify right side
    482,392.28x = 178,153,410,305.92
  5. Step 5: Solve for x
    x = 178,153,410,305.92/482,392.28
  6. Step 6: Final answer
    x = 369,312.32

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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.