Home / 383,056.43-528,612.93-210,971.12

Finding the Fourth Proportional to 383,056.43, 528,612.93 and 210,971.12

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Solution

The fourth proportional to 383,056.43, 528,612.93 and 210,971.12 is: 291,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,056.43 : 528,612.93 = 210,971.12 : x
  2. Step 2: Convert to fraction form
    383,056.43/528,612.93 = 210,971.12/x
  3. Step 3: Cross multiply
    383,056.43x = 528,612.93 × 210,971.12
  4. Step 4: Simplify right side
    383,056.43x = 111,522,059,245.52
  5. Step 5: Solve for x
    x = 111,522,059,245.52/383,056.43
  6. Step 6: Final answer
    x = 291,137.42

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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.