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Finding the Fourth Proportional to 441,404.20, 662,106.30 and 329,429.80

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Solution

The fourth proportional to 441,404.20, 662,106.30 and 329,429.80 is: 494,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,404.20 : 662,106.30 = 329,429.80 : x
  2. Step 2: Convert to fraction form
    441,404.20/662,106.30 = 329,429.80/x
  3. Step 3: Cross multiply
    441,404.20x = 662,106.30 × 329,429.80
  4. Step 4: Simplify right side
    441,404.20x = 218,117,545,987.74
  5. Step 5: Solve for x
    x = 218,117,545,987.74/441,404.20
  6. Step 6: Final answer
    x = 494,144.70

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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.