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Finding the Fourth Proportional to 489,236.56, 675,153.36 and 295,617.44

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Solution

The fourth proportional to 489,236.56, 675,153.36 and 295,617.44 is: 407,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,236.56 : 675,153.36 = 295,617.44 : x
  2. Step 2: Convert to fraction form
    489,236.56/675,153.36 = 295,617.44/x
  3. Step 3: Cross multiply
    489,236.56x = 675,153.36 × 295,617.44
  4. Step 4: Simplify right side
    489,236.56x = 199,587,107,890.60
  5. Step 5: Solve for x
    x = 199,587,107,890.60/489,236.56
  6. Step 6: Final answer
    x = 407,956.24

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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.