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Finding the Fourth Proportional to 482,816.64, 666,276.96 and 267,955.20

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Solution

The fourth proportional to 482,816.64, 666,276.96 and 267,955.20 is: 369,772.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,816.64 : 666,276.96 = 267,955.20 : x
  2. Step 2: Convert to fraction form
    482,816.64/666,276.96 = 267,955.20/x
  3. Step 3: Cross multiply
    482,816.64x = 666,276.96 × 267,955.20
  4. Step 4: Simplify right side
    482,816.64x = 178,532,376,072.19
  5. Step 5: Solve for x
    x = 178,532,376,072.19/482,816.64
  6. Step 6: Final answer
    x = 369,772.62

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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.