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Finding the Fourth Proportional to 603,726.49, 905,620.76 and 154,451.25

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Solution

The fourth proportional to 603,726.49, 905,620.76 and 154,451.25 is: 231,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,726.49 : 905,620.76 = 154,451.25 : x
  2. Step 2: Convert to fraction form
    603,726.49/905,620.76 = 154,451.25/x
  3. Step 3: Cross multiply
    603,726.49x = 905,620.76 × 154,451.25
  4. Step 4: Simplify right side
    603,726.49x = 139,874,258,407.95
  5. Step 5: Solve for x
    x = 139,874,258,407.95/603,726.49
  6. Step 6: Final answer
    x = 231,684.81

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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.