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Finding the Fourth Proportional to 382,074.20, 573,111.30 and 329,586.20

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Solution

The fourth proportional to 382,074.20, 573,111.30 and 329,586.20 is: 494,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,074.20 : 573,111.30 = 329,586.20 : x
  2. Step 2: Convert to fraction form
    382,074.20/573,111.30 = 329,586.20/x
  3. Step 3: Cross multiply
    382,074.20x = 573,111.30 × 329,586.20
  4. Step 4: Simplify right side
    382,074.20x = 188,889,575,544.06
  5. Step 5: Solve for x
    x = 188,889,575,544.06/382,074.20
  6. Step 6: Final answer
    x = 494,379.30

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1.5x scale

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.