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Finding the Fourth Proportional to 323,578.92, 485,368.38 and 323,111.64

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Solution

The fourth proportional to 323,578.92, 485,368.38 and 323,111.64 is: 484,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,578.92 : 485,368.38 = 323,111.64 : x
  2. Step 2: Convert to fraction form
    323,578.92/485,368.38 = 323,111.64/x
  3. Step 3: Cross multiply
    323,578.92x = 485,368.38 × 323,111.64
  4. Step 4: Simplify right side
    323,578.92x = 156,828,173,265.94
  5. Step 5: Solve for x
    x = 156,828,173,265.94/323,578.92
  6. Step 6: Final answer
    x = 484,667.46

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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.