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Finding the Fourth Proportional to 382,910.63, 574,720.57 and 193,504.28

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Solution

The fourth proportional to 382,910.63, 574,720.57 and 193,504.28 is: 290,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,910.63 : 574,720.57 = 193,504.28 : x
  2. Step 2: Convert to fraction form
    382,910.63/574,720.57 = 193,504.28/x
  3. Step 3: Cross multiply
    382,910.63x = 574,720.57 × 193,504.28
  4. Step 4: Simplify right side
    382,910.63x = 111,210,890,099.04
  5. Step 5: Solve for x
    x = 111,210,890,099.04/382,910.63
  6. Step 6: Final answer
    x = 290,435.63

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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.