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Finding the Fourth Proportional to 366,940.10, 550,410.15 and 328,448.90

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Solution

The fourth proportional to 366,940.10, 550,410.15 and 328,448.90 is: 492,673.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.10 : 550,410.15 = 328,448.90 : x
  2. Step 2: Convert to fraction form
    366,940.10/550,410.15 = 328,448.90/x
  3. Step 3: Cross multiply
    366,940.10x = 550,410.15 × 328,448.90
  4. Step 4: Simplify right side
    366,940.10x = 180,781,608,316.34
  5. Step 5: Solve for x
    x = 180,781,608,316.34/366,940.10
  6. Step 6: Final answer
    x = 492,673.35

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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.