Home / 403,416.48-556,729.92-222,136.32

Finding the Fourth Proportional to 403,416.48, 556,729.92 and 222,136.32

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Solution

The fourth proportional to 403,416.48, 556,729.92 and 222,136.32 is: 306,556.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,416.48 : 556,729.92 = 222,136.32 : x
  2. Step 2: Convert to fraction form
    403,416.48/556,729.92 = 222,136.32/x
  3. Step 3: Cross multiply
    403,416.48x = 556,729.92 × 222,136.32
  4. Step 4: Simplify right side
    403,416.48x = 123,669,935,662.69
  5. Step 5: Solve for x
    x = 123,669,935,662.69/403,416.48
  6. Step 6: Final answer
    x = 306,556.48

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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.