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Finding the Fourth Proportional to 445,756.97, 668,610.75 and 325,936.71

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Solution

The fourth proportional to 445,756.97, 668,610.75 and 325,936.71 is: 488,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,756.97 : 668,610.75 = 325,936.71 : x
  2. Step 2: Convert to fraction form
    445,756.97/668,610.75 = 325,936.71/x
  3. Step 3: Cross multiply
    445,756.97x = 668,610.75 × 325,936.71
  4. Step 4: Simplify right side
    445,756.97x = 217,924,789,347.90
  5. Step 5: Solve for x
    x = 217,924,789,347.90/445,756.97
  6. Step 6: Final answer
    x = 488,887.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.