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Finding the Fourth Proportional to 383,900.87, 575,080.33 and 191,194.78

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Solution

The fourth proportional to 383,900.87, 575,080.33 and 191,194.78 is: 286,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,900.87 : 575,080.33 = 191,194.78 : x
  2. Step 2: Convert to fraction form
    383,900.87/575,080.33 = 191,194.78/x
  3. Step 3: Cross multiply
    383,900.87x = 575,080.33 × 191,194.78
  4. Step 4: Simplify right side
    383,900.87x = 109,952,355,260.99
  5. Step 5: Solve for x
    x = 109,952,355,260.99/383,900.87
  6. Step 6: Final answer
    x = 286,408.20

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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.