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Finding the Fourth Proportional to 848,887, 1,171,630.47 and 486,553.75

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Solution

The fourth proportional to 848,887, 1,171,630.47 and 486,553.75 is: 671,539.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,887 : 1,171,630.47 = 486,553.75 : x
  2. Step 2: Convert to fraction form
    848,887/1,171,630.47 = 486,553.75/x
  3. Step 3: Cross multiply
    848,887x = 1,171,630.47 × 486,553.75
  4. Step 4: Simplify right side
    848,887x = 570,061,198,792.76
  5. Step 5: Solve for x
    x = 570,061,198,792.76/848,887
  6. Step 6: Final answer
    x = 671,539.56

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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.