Home / 403,437.56-556,721.78-222,115.05

Finding the Fourth Proportional to 403,437.56, 556,721.78 and 222,115.05

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Solution

The fourth proportional to 403,437.56, 556,721.78 and 222,115.05 is: 306,506.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,437.56 : 556,721.78 = 222,115.05 : x
  2. Step 2: Convert to fraction form
    403,437.56/556,721.78 = 222,115.05/x
  3. Step 3: Cross multiply
    403,437.56x = 556,721.78 × 222,115.05
  4. Step 4: Simplify right side
    403,437.56x = 123,656,286,556.08
  5. Step 5: Solve for x
    x = 123,656,286,556.08/403,437.56
  6. Step 6: Final answer
    x = 306,506.63

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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.