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Finding the Fourth Proportional to 350,970.21, 484,338.83 and 189,825.21

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Solution

The fourth proportional to 350,970.21, 484,338.83 and 189,825.21 is: 261,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,970.21 : 484,338.83 = 189,825.21 : x
  2. Step 2: Convert to fraction form
    350,970.21/484,338.83 = 189,825.21/x
  3. Step 3: Cross multiply
    350,970.21x = 484,338.83 × 189,825.21
  4. Step 4: Simplify right side
    350,970.21x = 91,939,720,115.90
  5. Step 5: Solve for x
    x = 91,939,720,115.90/350,970.21
  6. Step 6: Final answer
    x = 261,958.76

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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.