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Finding the Fourth Proportional to 655,216.40, 982,626.36 and 255,748.88

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Solution

The fourth proportional to 655,216.40, 982,626.36 and 255,748.88 is: 383,545.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,216.40 : 982,626.36 = 255,748.88 : x
  2. Step 2: Convert to fraction form
    655,216.40/982,626.36 = 255,748.88/x
  3. Step 3: Cross multiply
    655,216.40x = 982,626.36 × 255,748.88
  4. Step 4: Simplify right side
    655,216.40x = 251,305,591,028.48
  5. Step 5: Solve for x
    x = 251,305,591,028.48/655,216.40
  6. Step 6: Final answer
    x = 383,545.94

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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.