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Finding the Fourth Proportional to 529,453.80, 794,574.36 and 213,913.44

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Solution

The fourth proportional to 529,453.80, 794,574.36 and 213,913.44 is: 321,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,453.80 : 794,574.36 = 213,913.44 : x
  2. Step 2: Convert to fraction form
    529,453.80/794,574.36 = 213,913.44/x
  3. Step 3: Cross multiply
    529,453.80x = 794,574.36 × 213,913.44
  4. Step 4: Simplify right side
    529,453.80x = 169,970,134,683.40
  5. Step 5: Solve for x
    x = 169,970,134,683.40/529,453.80
  6. Step 6: Final answer
    x = 321,029.21

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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.