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Finding the Fourth Proportional to 655,054.70, 903,993.14 and 368,584.97

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Solution

The fourth proportional to 655,054.70, 903,993.14 and 368,584.97 is: 508,657.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,054.70 : 903,993.14 = 368,584.97 : x
  2. Step 2: Convert to fraction form
    655,054.70/903,993.14 = 368,584.97/x
  3. Step 3: Cross multiply
    655,054.70x = 903,993.14 × 368,584.97
  4. Step 4: Simplify right side
    655,054.70x = 333,198,280,788.60
  5. Step 5: Solve for x
    x = 333,198,280,788.60/655,054.70
  6. Step 6: Final answer
    x = 508,657.19

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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.