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Finding the Fourth Proportional to 655,850.51, 905,138.27 and 383,901.92

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Solution

The fourth proportional to 655,850.51, 905,138.27 and 383,901.92 is: 529,822.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,850.51 : 905,138.27 = 383,901.92 : x
  2. Step 2: Convert to fraction form
    655,850.51/905,138.27 = 383,901.92/x
  3. Step 3: Cross multiply
    655,850.51x = 905,138.27 × 383,901.92
  4. Step 4: Simplify right side
    655,850.51x = 347,484,317,798.97
  5. Step 5: Solve for x
    x = 347,484,317,798.97/655,850.51
  6. Step 6: Final answer
    x = 529,822.44

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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.