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Finding the Fourth Proportional to 327,495.08, 450,851.46 and 312,448.52

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Solution

The fourth proportional to 327,495.08, 450,851.46 and 312,448.52 is: 430,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,495.08 : 450,851.46 = 312,448.52 : x
  2. Step 2: Convert to fraction form
    327,495.08/450,851.46 = 312,448.52/x
  3. Step 3: Cross multiply
    327,495.08x = 450,851.46 × 312,448.52
  4. Step 4: Simplify right side
    327,495.08x = 140,867,871,416.84
  5. Step 5: Solve for x
    x = 140,867,871,416.84/327,495.08
  6. Step 6: Final answer
    x = 430,137.37

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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.