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Finding the Fourth Proportional to 366,423.40, 548,410.38 and 208,609.48

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Solution

The fourth proportional to 366,423.40, 548,410.38 and 208,609.48 is: 312,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,423.40 : 548,410.38 = 208,609.48 : x
  2. Step 2: Convert to fraction form
    366,423.40/548,410.38 = 208,609.48/x
  3. Step 3: Cross multiply
    366,423.40x = 548,410.38 × 208,609.48
  4. Step 4: Simplify right side
    366,423.40x = 114,403,604,198.40
  5. Step 5: Solve for x
    x = 114,403,604,198.40/366,423.40
  6. Step 6: Final answer
    x = 312,216.97

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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.