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Finding the Fourth Proportional to 395,096.88, 545,229.48 and 213,804.84

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Solution

The fourth proportional to 395,096.88, 545,229.48 and 213,804.84 is: 295,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,096.88 : 545,229.48 = 213,804.84 : x
  2. Step 2: Convert to fraction form
    395,096.88/545,229.48 = 213,804.84/x
  3. Step 3: Cross multiply
    395,096.88x = 545,229.48 × 213,804.84
  4. Step 4: Simplify right side
    395,096.88x = 116,572,701,734.68
  5. Step 5: Solve for x
    x = 116,572,701,734.68/395,096.88
  6. Step 6: Final answer
    x = 295,048.40

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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.