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Finding the Fourth Proportional to 480,071.75, 719,940.86 and 267,164.56

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Solution

The fourth proportional to 480,071.75, 719,940.86 and 267,164.56 is: 400,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,071.75 : 719,940.86 = 267,164.56 : x
  2. Step 2: Convert to fraction form
    480,071.75/719,940.86 = 267,164.56/x
  3. Step 3: Cross multiply
    480,071.75x = 719,940.86 × 267,164.56
  4. Step 4: Simplify right side
    480,071.75x = 192,342,683,653.89
  5. Step 5: Solve for x
    x = 192,342,683,653.89/480,071.75
  6. Step 6: Final answer
    x = 400,654.04

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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.