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Finding the Fourth Proportional to 383,911.02, 575,866.46 and 131,193.69

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Solution

The fourth proportional to 383,911.02, 575,866.46 and 131,193.69 is: 196,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,911.02 : 575,866.46 = 131,193.69 : x
  2. Step 2: Convert to fraction form
    383,911.02/575,866.46 = 131,193.69/x
  3. Step 3: Cross multiply
    383,911.02x = 575,866.46 × 131,193.69
  4. Step 4: Simplify right side
    383,911.02x = 75,550,045,178.67
  5. Step 5: Solve for x
    x = 75,550,045,178.67/383,911.02
  6. Step 6: Final answer
    x = 196,790.51

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Similar ratio
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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.