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Finding the Fourth Proportional to 351,544.88, 485,129.52 and 190,396.24

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Solution

The fourth proportional to 351,544.88, 485,129.52 and 190,396.24 is: 262,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,544.88 : 485,129.52 = 190,396.24 : x
  2. Step 2: Convert to fraction form
    351,544.88/485,129.52 = 190,396.24/x
  3. Step 3: Cross multiply
    351,544.88x = 485,129.52 × 190,396.24
  4. Step 4: Simplify right side
    351,544.88x = 92,366,836,521.00
  5. Step 5: Solve for x
    x = 92,366,836,521.00/351,544.88
  6. Step 6: Final answer
    x = 262,745.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.