Home / 398,849.78-597,775.74-199,225.89

Finding the Fourth Proportional to 398,849.78, 597,775.74 and 199,225.89

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Solution

The fourth proportional to 398,849.78, 597,775.74 and 199,225.89 is: 298,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,849.78 : 597,775.74 = 199,225.89 : x
  2. Step 2: Convert to fraction form
    398,849.78/597,775.74 = 199,225.89/x
  3. Step 3: Cross multiply
    398,849.78x = 597,775.74 × 199,225.89
  4. Step 4: Simplify right side
    398,849.78x = 119,092,403,821.91
  5. Step 5: Solve for x
    x = 119,092,403,821.91/398,849.78
  6. Step 6: Final answer
    x = 298,589.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.