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Finding the Fourth Proportional to 313,040.24, 431,992.46 and 169,798.22

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Solution

The fourth proportional to 313,040.24, 431,992.46 and 169,798.22 is: 234,319.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,040.24 : 431,992.46 = 169,798.22 : x
  2. Step 2: Convert to fraction form
    313,040.24/431,992.46 = 169,798.22/x
  3. Step 3: Cross multiply
    313,040.24x = 431,992.46 × 169,798.22
  4. Step 4: Simplify right side
    313,040.24x = 73,351,549,025.95
  5. Step 5: Solve for x
    x = 73,351,549,025.95/313,040.24
  6. Step 6: Final answer
    x = 234,319.88

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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.