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Finding the Fourth Proportional to 366,940.45, 550,410.68 and 209,476.45

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Solution

The fourth proportional to 366,940.45, 550,410.68 and 209,476.45 is: 314,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,940.45 : 550,410.68 = 209,476.45 : x
  2. Step 2: Convert to fraction form
    366,940.45/550,410.68 = 209,476.45/x
  3. Step 3: Cross multiply
    366,940.45x = 550,410.68 × 209,476.45
  4. Step 4: Simplify right side
    366,940.45x = 115,298,075,288.49
  5. Step 5: Solve for x
    x = 115,298,075,288.49/366,940.45
  6. Step 6: Final answer
    x = 314,214.68

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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.