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Finding the Fourth Proportional to 655,265.67, 903,919.81 and 450,961.90

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Solution

The fourth proportional to 655,265.67, 903,919.81 and 450,961.90 is: 622,088.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,265.67 : 903,919.81 = 450,961.90 : x
  2. Step 2: Convert to fraction form
    655,265.67/903,919.81 = 450,961.90/x
  3. Step 3: Cross multiply
    655,265.67x = 903,919.81 × 450,961.90
  4. Step 4: Simplify right side
    655,265.67x = 407,633,388,190.83
  5. Step 5: Solve for x
    x = 407,633,388,190.83/655,265.67
  6. Step 6: Final answer
    x = 622,088.73

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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.