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Finding the Fourth Proportional to 482,071.26, 665,290.36 and 267,220.38

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Solution

The fourth proportional to 482,071.26, 665,290.36 and 267,220.38 is: 368,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,071.26 : 665,290.36 = 267,220.38 : x
  2. Step 2: Convert to fraction form
    482,071.26/665,290.36 = 267,220.38/x
  3. Step 3: Cross multiply
    482,071.26x = 665,290.36 × 267,220.38
  4. Step 4: Simplify right side
    482,071.26x = 177,779,142,809.54
  5. Step 5: Solve for x
    x = 177,779,142,809.54/482,071.26
  6. Step 6: Final answer
    x = 368,781.87

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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.