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Finding the Fourth Proportional to 659,692.44, 989,603.46 and 186,381.48

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Solution

The fourth proportional to 659,692.44, 989,603.46 and 186,381.48 is: 279,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,692.44 : 989,603.46 = 186,381.48 : x
  2. Step 2: Convert to fraction form
    659,692.44/989,603.46 = 186,381.48/x
  3. Step 3: Cross multiply
    659,692.44x = 989,603.46 × 186,381.48
  4. Step 4: Simplify right side
    659,692.44x = 184,443,757,487.92
  5. Step 5: Solve for x
    x = 184,443,757,487.92/659,692.44
  6. Step 6: Final answer
    x = 279,590.53

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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.