Home / 383,073.30-528,560.24-221,918.81

Finding the Fourth Proportional to 383,073.30, 528,560.24 and 221,918.81

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Solution

The fourth proportional to 383,073.30, 528,560.24 and 221,918.81 is: 306,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,073.30 : 528,560.24 = 221,918.81 : x
  2. Step 2: Convert to fraction form
    383,073.30/528,560.24 = 221,918.81/x
  3. Step 3: Cross multiply
    383,073.30x = 528,560.24 × 221,918.81
  4. Step 4: Simplify right side
    383,073.30x = 117,297,455,721.72
  5. Step 5: Solve for x
    x = 117,297,455,721.72/383,073.30
  6. Step 6: Final answer
    x = 306,201.07

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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.