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Finding the Fourth Proportional to 569,628.45, 854,525.60 and 209,971.44

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Solution

The fourth proportional to 569,628.45, 854,525.60 and 209,971.44 is: 314,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,628.45 : 854,525.60 = 209,971.44 : x
  2. Step 2: Convert to fraction form
    569,628.45/854,525.60 = 209,971.44/x
  3. Step 3: Cross multiply
    569,628.45x = 854,525.60 × 209,971.44
  4. Step 4: Simplify right side
    569,628.45x = 179,425,970,486.40
  5. Step 5: Solve for x
    x = 179,425,970,486.40/569,628.45
  6. Step 6: Final answer
    x = 314,987.73

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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.