Home / 394,933.58-545,008.38-222,888.20

Finding the Fourth Proportional to 394,933.58, 545,008.38 and 222,888.20

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Solution

The fourth proportional to 394,933.58, 545,008.38 and 222,888.20 is: 307,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,933.58 : 545,008.38 = 222,888.20 : x
  2. Step 2: Convert to fraction form
    394,933.58/545,008.38 = 222,888.20/x
  3. Step 3: Cross multiply
    394,933.58x = 545,008.38 × 222,888.20
  4. Step 4: Simplify right side
    394,933.58x = 121,475,936,803.12
  5. Step 5: Solve for x
    x = 121,475,936,803.12/394,933.58
  6. Step 6: Final answer
    x = 307,585.74

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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.