Home / 321,628.32-443,813.58-185,616.36

Finding the Fourth Proportional to 321,628.32, 443,813.58 and 185,616.36

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Solution

The fourth proportional to 321,628.32, 443,813.58 and 185,616.36 is: 256,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,628.32 : 443,813.58 = 185,616.36 : x
  2. Step 2: Convert to fraction form
    321,628.32/443,813.58 = 185,616.36/x
  3. Step 3: Cross multiply
    321,628.32x = 443,813.58 × 185,616.36
  4. Step 4: Simplify right side
    321,628.32x = 82,379,061,238.17
  5. Step 5: Solve for x
    x = 82,379,061,238.17/321,628.32
  6. Step 6: Final answer
    x = 256,131.24

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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.