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Finding the Fourth Proportional to 451,690.44, 623,343.78 and 247,749.72

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Solution

The fourth proportional to 451,690.44, 623,343.78 and 247,749.72 is: 341,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,690.44 : 623,343.78 = 247,749.72 : x
  2. Step 2: Convert to fraction form
    451,690.44/623,343.78 = 247,749.72/x
  3. Step 3: Cross multiply
    451,690.44x = 623,343.78 × 247,749.72
  4. Step 4: Simplify right side
    451,690.44x = 154,433,246,958.74
  5. Step 5: Solve for x
    x = 154,433,246,958.74/451,690.44
  6. Step 6: Final answer
    x = 341,900.63

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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.