Home / 353,576.20-487,986.59-198,544.90

Finding the Fourth Proportional to 353,576.20, 487,986.59 and 198,544.90

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Solution

The fourth proportional to 353,576.20, 487,986.59 and 198,544.90 is: 274,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,576.20 : 487,986.59 = 198,544.90 : x
  2. Step 2: Convert to fraction form
    353,576.20/487,986.59 = 198,544.90/x
  3. Step 3: Cross multiply
    353,576.20x = 487,986.59 × 198,544.90
  4. Step 4: Simplify right side
    353,576.20x = 96,887,248,334.08
  5. Step 5: Solve for x
    x = 96,887,248,334.08/353,576.20
  6. Step 6: Final answer
    x = 274,020.84

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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.