Home / 403,236.85-556,462.47-221,944.90

Finding the Fourth Proportional to 403,236.85, 556,462.47 and 221,944.90

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Solution

The fourth proportional to 403,236.85, 556,462.47 and 221,944.90 is: 306,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,236.85 : 556,462.47 = 221,944.90 : x
  2. Step 2: Convert to fraction form
    403,236.85/556,462.47 = 221,944.90/x
  3. Step 3: Cross multiply
    403,236.85x = 556,462.47 × 221,944.90
  4. Step 4: Simplify right side
    403,236.85x = 123,504,007,257.90
  5. Step 5: Solve for x
    x = 123,504,007,257.90/403,236.85
  6. Step 6: Final answer
    x = 306,281.55

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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.