Home / 312,596.20-431,382.18-169,359.80

Finding the Fourth Proportional to 312,596.20, 431,382.18 and 169,359.80

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Solution

The fourth proportional to 312,596.20, 431,382.18 and 169,359.80 is: 233,716.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,596.20 : 431,382.18 = 169,359.80 : x
  2. Step 2: Convert to fraction form
    312,596.20/431,382.18 = 169,359.80/x
  3. Step 3: Cross multiply
    312,596.20x = 431,382.18 × 169,359.80
  4. Step 4: Simplify right side
    312,596.20x = 73,058,799,728.36
  5. Step 5: Solve for x
    x = 73,058,799,728.36/312,596.20
  6. Step 6: Final answer
    x = 233,716.21

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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.