Home / 464,584.11-641,351.34-311,566.56

Finding the Fourth Proportional to 464,584.11, 641,351.34 and 311,566.56

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Solution

The fourth proportional to 464,584.11, 641,351.34 and 311,566.56 is: 430,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,584.11 : 641,351.34 = 311,566.56 : x
  2. Step 2: Convert to fraction form
    464,584.11/641,351.34 = 311,566.56/x
  3. Step 3: Cross multiply
    464,584.11x = 641,351.34 × 311,566.56
  4. Step 4: Simplify right side
    464,584.11x = 199,823,630,755.19
  5. Step 5: Solve for x
    x = 199,823,630,755.19/464,584.11
  6. Step 6: Final answer
    x = 430,112.93

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1.5x scale

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.