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Finding the Fourth Proportional to 482,083.78, 665,205.78 and 267,223.78

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Solution

The fourth proportional to 482,083.78, 665,205.78 and 267,223.78 is: 368,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,083.78 : 665,205.78 = 267,223.78 : x
  2. Step 2: Convert to fraction form
    482,083.78/665,205.78 = 267,223.78/x
  3. Step 3: Cross multiply
    482,083.78x = 665,205.78 × 267,223.78
  4. Step 4: Simplify right side
    482,083.78x = 177,758,803,009.45
  5. Step 5: Solve for x
    x = 177,758,803,009.45/482,083.78
  6. Step 6: Final answer
    x = 368,730.11

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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.