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Finding the Fourth Proportional to 401,843.08, 554,506.71 and 238,471.34

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Solution

The fourth proportional to 401,843.08, 554,506.71 and 238,471.34 is: 329,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,843.08 : 554,506.71 = 238,471.34 : x
  2. Step 2: Convert to fraction form
    401,843.08/554,506.71 = 238,471.34/x
  3. Step 3: Cross multiply
    401,843.08x = 554,506.71 × 238,471.34
  4. Step 4: Simplify right side
    401,843.08x = 132,233,958,172.69
  5. Step 5: Solve for x
    x = 132,233,958,172.69/401,843.08
  6. Step 6: Final answer
    x = 329,068.65

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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.