Home / 319,456.30-440,991.39-206,334.22

Finding the Fourth Proportional to 319,456.30, 440,991.39 and 206,334.22

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Solution

The fourth proportional to 319,456.30, 440,991.39 and 206,334.22 is: 284,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,456.30 : 440,991.39 = 206,334.22 : x
  2. Step 2: Convert to fraction form
    319,456.30/440,991.39 = 206,334.22/x
  3. Step 3: Cross multiply
    319,456.30x = 440,991.39 × 206,334.22
  4. Step 4: Simplify right side
    319,456.30x = 90,991,614,482.37
  5. Step 5: Solve for x
    x = 90,991,614,482.37/319,456.30
  6. Step 6: Final answer
    x = 284,832.74

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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.