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Finding the Fourth Proportional to 511,668.21, 706,014.03 and 328,067.34

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Solution

The fourth proportional to 511,668.21, 706,014.03 and 328,067.34 is: 452,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,668.21 : 706,014.03 = 328,067.34 : x
  2. Step 2: Convert to fraction form
    511,668.21/706,014.03 = 328,067.34/x
  3. Step 3: Cross multiply
    511,668.21x = 706,014.03 × 328,067.34
  4. Step 4: Simplify right side
    511,668.21x = 231,620,144,824.78
  5. Step 5: Solve for x
    x = 231,620,144,824.78/511,668.21
  6. Step 6: Final answer
    x = 452,676.44

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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.