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Finding the Fourth Proportional to 481,772.72, 664,851.04 and 266,915.72

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Solution

The fourth proportional to 481,772.72, 664,851.04 and 266,915.72 is: 368,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,772.72 : 664,851.04 = 266,915.72 : x
  2. Step 2: Convert to fraction form
    481,772.72/664,851.04 = 266,915.72/x
  3. Step 3: Cross multiply
    481,772.72x = 664,851.04 × 266,915.72
  4. Step 4: Simplify right side
    481,772.72x = 177,459,194,034.35
  5. Step 5: Solve for x
    x = 177,459,194,034.35/481,772.72
  6. Step 6: Final answer
    x = 368,346.29

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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.