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Finding the Fourth Proportional to 570,784.26, 787,674.33 and 329,067.30

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Solution

The fourth proportional to 570,784.26, 787,674.33 and 329,067.30 is: 454,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,784.26 : 787,674.33 = 329,067.30 : x
  2. Step 2: Convert to fraction form
    570,784.26/787,674.33 = 329,067.30/x
  3. Step 3: Cross multiply
    570,784.26x = 787,674.33 × 329,067.30
  4. Step 4: Simplify right side
    570,784.26x = 259,197,865,052.41
  5. Step 5: Solve for x
    x = 259,197,865,052.41/570,784.26
  6. Step 6: Final answer
    x = 454,108.29

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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.