Home / 383,099.23-528,682.58-221,965.93

Finding the Fourth Proportional to 383,099.23, 528,682.58 and 221,965.93

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Solution

The fourth proportional to 383,099.23, 528,682.58 and 221,965.93 is: 306,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,099.23 : 528,682.58 = 221,965.93 : x
  2. Step 2: Convert to fraction form
    383,099.23/528,682.58 = 221,965.93/x
  3. Step 3: Cross multiply
    383,099.23x = 528,682.58 × 221,965.93
  4. Step 4: Simplify right side
    383,099.23x = 117,349,520,544.50
  5. Step 5: Solve for x
    x = 117,349,520,544.50/383,099.23
  6. Step 6: Final answer
    x = 306,316.25

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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.