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Finding the Fourth Proportional to 494,421.36, 682,326.48 and 276,654.48

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Solution

The fourth proportional to 494,421.36, 682,326.48 and 276,654.48 is: 381,797.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,421.36 : 682,326.48 = 276,654.48 : x
  2. Step 2: Convert to fraction form
    494,421.36/682,326.48 = 276,654.48/x
  3. Step 3: Cross multiply
    494,421.36x = 682,326.48 × 276,654.48
  4. Step 4: Simplify right side
    494,421.36x = 188,768,677,514.63
  5. Step 5: Solve for x
    x = 188,768,677,514.63/494,421.36
  6. Step 6: Final answer
    x = 381,797.17

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1.5x scale

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.