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Finding the Fourth Proportional to 603,844.34, 905,765.92 and 154,564.48

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Solution

The fourth proportional to 603,844.34, 905,765.92 and 154,564.48 is: 231,846.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,844.34 : 905,765.92 = 154,564.48 : x
  2. Step 2: Convert to fraction form
    603,844.34/905,765.92 = 154,564.48/x
  3. Step 3: Cross multiply
    603,844.34x = 905,765.92 × 154,564.48
  4. Step 4: Simplify right side
    603,844.34x = 139,999,242,016.35
  5. Step 5: Solve for x
    x = 139,999,242,016.35/603,844.34
  6. Step 6: Final answer
    x = 231,846.58

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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.