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Finding the Fourth Proportional to 451,965.76, 623,691.62 and 248,011.54

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Solution

The fourth proportional to 451,965.76, 623,691.62 and 248,011.54 is: 342,244.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,965.76 : 623,691.62 = 248,011.54 : x
  2. Step 2: Convert to fraction form
    451,965.76/623,691.62 = 248,011.54/x
  3. Step 3: Cross multiply
    451,965.76x = 623,691.62 × 248,011.54
  4. Step 4: Simplify right side
    451,965.76x = 154,682,719,161.30
  5. Step 5: Solve for x
    x = 154,682,719,161.30/451,965.76
  6. Step 6: Final answer
    x = 342,244.33

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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.