Home / 403,228.69-556,451.20-221,936.73

Finding the Fourth Proportional to 403,228.69, 556,451.20 and 221,936.73

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Solution

The fourth proportional to 403,228.69, 556,451.20 and 221,936.73 is: 306,270.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,228.69 : 556,451.20 = 221,936.73 : x
  2. Step 2: Convert to fraction form
    403,228.69/556,451.20 = 221,936.73/x
  3. Step 3: Cross multiply
    403,228.69x = 556,451.20 × 221,936.73
  4. Step 4: Simplify right side
    403,228.69x = 123,496,958,622.89
  5. Step 5: Solve for x
    x = 123,496,958,622.89/403,228.69
  6. Step 6: Final answer
    x = 306,270.27

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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.