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Finding the Fourth Proportional to 451,805.84, 623,489.52 and 247,851.54

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Solution

The fourth proportional to 451,805.84, 623,489.52 and 247,851.54 is: 342,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,805.84 : 623,489.52 = 247,851.54 : x
  2. Step 2: Convert to fraction form
    451,805.84/623,489.52 = 247,851.54/x
  3. Step 3: Cross multiply
    451,805.84x = 623,489.52 × 247,851.54
  4. Step 4: Simplify right side
    451,805.84x = 154,532,837,705.86
  5. Step 5: Solve for x
    x = 154,532,837,705.86/451,805.84
  6. Step 6: Final answer
    x = 342,033.73

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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.