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Finding the Fourth Proportional to 655,896.25, 905,363.33 and 384,051.54

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Solution

The fourth proportional to 655,896.25, 905,363.33 and 384,051.54 is: 530,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,896.25 : 905,363.33 = 384,051.54 : x
  2. Step 2: Convert to fraction form
    655,896.25/905,363.33 = 384,051.54/x
  3. Step 3: Cross multiply
    655,896.25x = 905,363.33 × 384,051.54
  4. Step 4: Simplify right side
    655,896.25x = 347,706,182,620.88
  5. Step 5: Solve for x
    x = 347,706,182,620.88/655,896.25
  6. Step 6: Final answer
    x = 530,123.75

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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.