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Finding the Fourth Proportional to 579,764.53, 869,638.15 and 200,961.01

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Solution

The fourth proportional to 579,764.53, 869,638.15 and 200,961.01 is: 301,438.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,764.53 : 869,638.15 = 200,961.01 : x
  2. Step 2: Convert to fraction form
    579,764.53/869,638.15 = 200,961.01/x
  3. Step 3: Cross multiply
    579,764.53x = 869,638.15 × 200,961.01
  4. Step 4: Simplify right side
    579,764.53x = 174,763,360,958.53
  5. Step 5: Solve for x
    x = 174,763,360,958.53/579,764.53
  6. Step 6: Final answer
    x = 301,438.52

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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.