Home / 383,040.92-528,516.02-221,886.29

Finding the Fourth Proportional to 383,040.92, 528,516.02 and 221,886.29

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Solution

The fourth proportional to 383,040.92, 528,516.02 and 221,886.29 is: 306,156.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,040.92 : 528,516.02 = 221,886.29 : x
  2. Step 2: Convert to fraction form
    383,040.92/528,516.02 = 221,886.29/x
  3. Step 3: Cross multiply
    383,040.92x = 528,516.02 × 221,886.29
  4. Step 4: Simplify right side
    383,040.92x = 117,270,458,883.37
  5. Step 5: Solve for x
    x = 117,270,458,883.37/383,040.92
  6. Step 6: Final answer
    x = 306,156.48

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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.