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Finding the Fourth Proportional to 916,490.92, 1,374,759.42 and 251,641

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Solution

The fourth proportional to 916,490.92, 1,374,759.42 and 251,641 is: 377,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,490.92 : 1,374,759.42 = 251,641 : x
  2. Step 2: Convert to fraction form
    916,490.92/1,374,759.42 = 251,641/x
  3. Step 3: Cross multiply
    916,490.92x = 1,374,759.42 × 251,641
  4. Step 4: Simplify right side
    916,490.92x = 345,945,835,208.22
  5. Step 5: Solve for x
    x = 345,945,835,208.22/916,490.92
  6. Step 6: Final answer
    x = 377,467.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.