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Finding the Fourth Proportional to 603,726.26, 905,620.40 and 154,451.00

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Solution

The fourth proportional to 603,726.26, 905,620.40 and 154,451.00 is: 231,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,726.26 : 905,620.40 = 154,451.00 : x
  2. Step 2: Convert to fraction form
    603,726.26/905,620.40 = 154,451.00/x
  3. Step 3: Cross multiply
    603,726.26x = 905,620.40 × 154,451.00
  4. Step 4: Simplify right side
    603,726.26x = 139,873,979,050.58
  5. Step 5: Solve for x
    x = 139,873,979,050.58/603,726.26
  6. Step 6: Final answer
    x = 231,684.44

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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.