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Finding the Fourth Proportional to 451,906.47, 623,630.61 and 247,958.60

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Solution

The fourth proportional to 451,906.47, 623,630.61 and 247,958.60 is: 342,182.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,906.47 : 623,630.61 = 247,958.60 : x
  2. Step 2: Convert to fraction form
    451,906.47/623,630.61 = 247,958.60/x
  3. Step 3: Cross multiply
    451,906.47x = 623,630.61 × 247,958.60
  4. Step 4: Simplify right side
    451,906.47x = 154,634,569,854.59
  5. Step 5: Solve for x
    x = 154,634,569,854.59/451,906.47
  6. Step 6: Final answer
    x = 342,182.69

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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.