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Finding the Fourth Proportional to 451,691.93, 623,352.30 and 247,751.45

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Solution

The fourth proportional to 451,691.93, 623,352.30 and 247,751.45 is: 341,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,691.93 : 623,352.30 = 247,751.45 : x
  2. Step 2: Convert to fraction form
    451,691.93/623,352.30 = 247,751.45/x
  3. Step 3: Cross multiply
    451,691.93x = 623,352.30 × 247,751.45
  4. Step 4: Simplify right side
    451,691.93x = 154,436,436,185.84
  5. Step 5: Solve for x
    x = 154,436,436,185.84/451,691.93
  6. Step 6: Final answer
    x = 341,906.56

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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.