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Finding the Fourth Proportional to 376,163.80, 528,029 and 376,163.80

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Solution

The fourth proportional to 376,163.80, 528,029 and 376,163.80 is: 528,029

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,163.80 : 528,029 = 376,163.80 : x
  2. Step 2: Convert to fraction form
    376,163.80/528,029 = 376,163.80/x
  3. Step 3: Cross multiply
    376,163.80x = 528,029 × 376,163.80
  4. Step 4: Simplify right side
    376,163.80x = 198,625,395,150.20
  5. Step 5: Solve for x
    x = 198,625,395,150.20/376,163.80
  6. Step 6: Final answer
    x = 528,029

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.