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Finding the Fourth Proportional to 436,909.70, 655,619.30 and 184,174.71

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Solution

The fourth proportional to 436,909.70, 655,619.30 and 184,174.71 is: 276,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,909.70 : 655,619.30 = 184,174.71 : x
  2. Step 2: Convert to fraction form
    436,909.70/655,619.30 = 184,174.71/x
  3. Step 3: Cross multiply
    436,909.70x = 655,619.30 × 184,174.71
  4. Step 4: Simplify right side
    436,909.70x = 120,748,493,527.03
  5. Step 5: Solve for x
    x = 120,748,493,527.03/436,909.70
  6. Step 6: Final answer
    x = 276,369.45

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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.