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Finding the Fourth Proportional to 659,694.94, 989,607.21 and 186,383.98

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Solution

The fourth proportional to 659,694.94, 989,607.21 and 186,383.98 is: 279,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,694.94 : 989,607.21 = 186,383.98 : x
  2. Step 2: Convert to fraction form
    659,694.94/989,607.21 = 186,383.98/x
  3. Step 3: Cross multiply
    659,694.94x = 989,607.21 × 186,383.98
  4. Step 4: Simplify right side
    659,694.94x = 184,446,930,436.50
  5. Step 5: Solve for x
    x = 184,446,930,436.50/659,694.94
  6. Step 6: Final answer
    x = 279,594.28

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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.