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Finding the Fourth Proportional to 451,770.54, 623,451.68 and 247,831.89

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Solution

The fourth proportional to 451,770.54, 623,451.68 and 247,831.89 is: 342,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,770.54 : 623,451.68 = 247,831.89 : x
  2. Step 2: Convert to fraction form
    451,770.54/623,451.68 = 247,831.89/x
  3. Step 3: Cross multiply
    451,770.54x = 623,451.68 × 247,831.89
  4. Step 4: Simplify right side
    451,770.54x = 154,511,206,938.92
  5. Step 5: Solve for x
    x = 154,511,206,938.92/451,770.54
  6. Step 6: Final answer
    x = 342,012.58

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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.