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Finding the Fourth Proportional to 383,216.53, 528,813.51 and 230,163.77

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Solution

The fourth proportional to 383,216.53, 528,813.51 and 230,163.77 is: 317,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,216.53 : 528,813.51 = 230,163.77 : x
  2. Step 2: Convert to fraction form
    383,216.53/528,813.51 = 230,163.77/x
  3. Step 3: Cross multiply
    383,216.53x = 528,813.51 × 230,163.77
  4. Step 4: Simplify right side
    383,216.53x = 121,713,711,088.53
  5. Step 5: Solve for x
    x = 121,713,711,088.53/383,216.53
  6. Step 6: Final answer
    x = 317,610.81

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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.