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Finding the Fourth Proportional to 655,291.67, 903,528.73 and 448,660.27

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Solution

The fourth proportional to 655,291.67, 903,528.73 and 448,660.27 is: 618,621.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,291.67 : 903,528.73 = 448,660.27 : x
  2. Step 2: Convert to fraction form
    655,291.67/903,528.73 = 448,660.27/x
  3. Step 3: Cross multiply
    655,291.67x = 903,528.73 × 448,660.27
  4. Step 4: Simplify right side
    655,291.67x = 405,377,443,954.56
  5. Step 5: Solve for x
    x = 405,377,443,954.56/655,291.67
  6. Step 6: Final answer
    x = 618,621.39

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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.