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Finding the Fourth Proportional to 481,726.16, 664,407.87 and 328,887.56

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Solution

The fourth proportional to 481,726.16, 664,407.87 and 328,887.56 is: 453,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,726.16 : 664,407.87 = 328,887.56 : x
  2. Step 2: Convert to fraction form
    481,726.16/664,407.87 = 328,887.56/x
  3. Step 3: Cross multiply
    481,726.16x = 664,407.87 × 328,887.56
  4. Step 4: Simplify right side
    481,726.16x = 218,515,483,209.10
  5. Step 5: Solve for x
    x = 218,515,483,209.10/481,726.16
  6. Step 6: Final answer
    x = 453,609.34

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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.