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Finding the Fourth Proportional to 464,812.56, 641,581.56 and 401,826.96

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Solution

The fourth proportional to 464,812.56, 641,581.56 and 401,826.96 is: 554,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,812.56 : 641,581.56 = 401,826.96 : x
  2. Step 2: Convert to fraction form
    464,812.56/641,581.56 = 401,826.96/x
  3. Step 3: Cross multiply
    464,812.56x = 641,581.56 × 401,826.96
  4. Step 4: Simplify right side
    464,812.56x = 257,804,767,846.86
  5. Step 5: Solve for x
    x = 257,804,767,846.86/464,812.56
  6. Step 6: Final answer
    x = 554,642.43

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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.