Home / 403,956.11-557,456.64-222,668.19

Finding the Fourth Proportional to 403,956.11, 557,456.64 and 222,668.19

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Solution

The fourth proportional to 403,956.11, 557,456.64 and 222,668.19 is: 307,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,956.11 : 557,456.64 = 222,668.19 : x
  2. Step 2: Convert to fraction form
    403,956.11/557,456.64 = 222,668.19/x
  3. Step 3: Cross multiply
    403,956.11x = 557,456.64 × 222,668.19
  4. Step 4: Simplify right side
    403,956.11x = 124,127,861,032.28
  5. Step 5: Solve for x
    x = 124,127,861,032.28/403,956.11
  6. Step 6: Final answer
    x = 307,280.57

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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.