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Finding the Fourth Proportional to 618,933.35, 928,392.33 and 169,653.80

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Solution

The fourth proportional to 618,933.35, 928,392.33 and 169,653.80 is: 254,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,933.35 : 928,392.33 = 169,653.80 : x
  2. Step 2: Convert to fraction form
    618,933.35/928,392.33 = 169,653.80/x
  3. Step 3: Cross multiply
    618,933.35x = 928,392.33 × 169,653.80
  4. Step 4: Simplify right side
    618,933.35x = 157,505,286,675.35
  5. Step 5: Solve for x
    x = 157,505,286,675.35/618,933.35
  6. Step 6: Final answer
    x = 254,478.59

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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.