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Finding the Fourth Proportional to 366,938.78, 550,408.17 and 366,938.78

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Solution

The fourth proportional to 366,938.78, 550,408.17 and 366,938.78 is: 550,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.78 : 550,408.17 = 366,938.78 : x
  2. Step 2: Convert to fraction form
    366,938.78/550,408.17 = 366,938.78/x
  3. Step 3: Cross multiply
    366,938.78x = 550,408.17 × 366,938.78
  4. Step 4: Simplify right side
    366,938.78x = 201,966,102,401.83
  5. Step 5: Solve for x
    x = 201,966,102,401.83/366,938.78
  6. Step 6: Final answer
    x = 550,408.17

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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.