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Finding the Fourth Proportional to 569,620.39, 854,515.53 and 209,763.55

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Solution

The fourth proportional to 569,620.39, 854,515.53 and 209,763.55 is: 314,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,620.39 : 854,515.53 = 209,763.55 : x
  2. Step 2: Convert to fraction form
    569,620.39/854,515.53 = 209,763.55/x
  3. Step 3: Cross multiply
    569,620.39x = 854,515.53 × 209,763.55
  4. Step 4: Simplify right side
    569,620.39x = 179,246,211,102.93
  5. Step 5: Solve for x
    x = 179,246,211,102.93/569,620.39
  6. Step 6: Final answer
    x = 314,676.61

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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.