Home / 403,198.90-556,414.54-219,438.16

Finding the Fourth Proportional to 403,198.90, 556,414.54 and 219,438.16

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Solution

The fourth proportional to 403,198.90, 556,414.54 and 219,438.16 is: 302,824.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,198.90 : 556,414.54 = 219,438.16 : x
  2. Step 2: Convert to fraction form
    403,198.90/556,414.54 = 219,438.16/x
  3. Step 3: Cross multiply
    403,198.90x = 556,414.54 × 219,438.16
  4. Step 4: Simplify right side
    403,198.90x = 122,098,582,854.85
  5. Step 5: Solve for x
    x = 122,098,582,854.85/403,198.90
  6. Step 6: Final answer
    x = 302,824.69

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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.