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Finding the Fourth Proportional to 543,453.50, 749,989.25 and 301,736.10

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Solution

The fourth proportional to 543,453.50, 749,989.25 and 301,736.10 is: 416,408.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,453.50 : 749,989.25 = 301,736.10 : x
  2. Step 2: Convert to fraction form
    543,453.50/749,989.25 = 301,736.10/x
  3. Step 3: Cross multiply
    543,453.50x = 749,989.25 × 301,736.10
  4. Step 4: Simplify right side
    543,453.50x = 226,298,831,336.93
  5. Step 5: Solve for x
    x = 226,298,831,336.93/543,453.50
  6. Step 6: Final answer
    x = 416,408.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.