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Finding the Fourth Proportional to 350,353.25, 483,487.45 and 189,208.28

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Solution

The fourth proportional to 350,353.25, 483,487.45 and 189,208.28 is: 261,107.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,353.25 : 483,487.45 = 189,208.28 : x
  2. Step 2: Convert to fraction form
    350,353.25/483,487.45 = 189,208.28/x
  3. Step 3: Cross multiply
    350,353.25x = 483,487.45 × 189,208.28
  4. Step 4: Simplify right side
    350,353.25x = 91,479,828,816.09
  5. Step 5: Solve for x
    x = 91,479,828,816.09/350,353.25
  6. Step 6: Final answer
    x = 261,107.41

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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.