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Finding the Fourth Proportional to 482,455.43, 665,868.21 and 267,664.69

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Solution

The fourth proportional to 482,455.43, 665,868.21 and 267,664.69 is: 369,421.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,455.43 : 665,868.21 = 267,664.69 : x
  2. Step 2: Convert to fraction form
    482,455.43/665,868.21 = 267,664.69/x
  3. Step 3: Cross multiply
    482,455.43x = 665,868.21 × 267,664.69
  4. Step 4: Simplify right side
    482,455.43x = 178,229,408,010.51
  5. Step 5: Solve for x
    x = 178,229,408,010.51/482,455.43
  6. Step 6: Final answer
    x = 369,421.50

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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.