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Finding the Fourth Proportional to 450,959.88, 622,324.90 and 247,014.21

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Solution

The fourth proportional to 450,959.88, 622,324.90 and 247,014.21 is: 340,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,959.88 : 622,324.90 = 247,014.21 : x
  2. Step 2: Convert to fraction form
    450,959.88/622,324.90 = 247,014.21/x
  3. Step 3: Cross multiply
    450,959.88x = 622,324.90 × 247,014.21
  4. Step 4: Simplify right side
    450,959.88x = 153,723,093,536.83
  5. Step 5: Solve for x
    x = 153,723,093,536.83/450,959.88
  6. Step 6: Final answer
    x = 340,879.76

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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.