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Finding the Fourth Proportional to 659,710.44, 989,630.46 and 186,399.48

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Solution

The fourth proportional to 659,710.44, 989,630.46 and 186,399.48 is: 279,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,710.44 : 989,630.46 = 186,399.48 : x
  2. Step 2: Convert to fraction form
    659,710.44/989,630.46 = 186,399.48/x
  3. Step 3: Cross multiply
    659,710.44x = 989,630.46 × 186,399.48
  4. Step 4: Simplify right side
    659,710.44x = 184,466,603,136.16
  5. Step 5: Solve for x
    x = 184,466,603,136.16/659,710.44
  6. Step 6: Final answer
    x = 279,617.53

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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.