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Finding the Fourth Proportional to 448,556.62, 672,073.26 and 270,689.88

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Solution

The fourth proportional to 448,556.62, 672,073.26 and 270,689.88 is: 405,575.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,556.62 : 672,073.26 = 270,689.88 : x
  2. Step 2: Convert to fraction form
    448,556.62/672,073.26 = 270,689.88/x
  3. Step 3: Cross multiply
    448,556.62x = 672,073.26 × 270,689.88
  4. Step 4: Simplify right side
    448,556.62x = 181,923,430,100.61
  5. Step 5: Solve for x
    x = 181,923,430,100.61/448,556.62
  6. Step 6: Final answer
    x = 405,575.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.