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Finding the Fourth Proportional to 401,529.01, 554,760.89 and 341,731.57

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Solution

The fourth proportional to 401,529.01, 554,760.89 and 341,731.57 is: 472,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,529.01 : 554,760.89 = 341,731.57 : x
  2. Step 2: Convert to fraction form
    401,529.01/554,760.89 = 341,731.57/x
  3. Step 3: Cross multiply
    401,529.01x = 554,760.89 × 341,731.57
  4. Step 4: Simplify right side
    401,529.01x = 189,579,309,914.30
  5. Step 5: Solve for x
    x = 189,579,309,914.30/401,529.01
  6. Step 6: Final answer
    x = 472,143.49

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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.