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Finding the Fourth Proportional to 366,653.60, 550,417.80 and 206,856.80

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Solution

The fourth proportional to 366,653.60, 550,417.80 and 206,856.80 is: 310,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,653.60 : 550,417.80 = 206,856.80 : x
  2. Step 2: Convert to fraction form
    366,653.60/550,417.80 = 206,856.80/x
  3. Step 3: Cross multiply
    366,653.60x = 550,417.80 × 206,856.80
  4. Step 4: Simplify right side
    366,653.60x = 113,857,664,771.04
  5. Step 5: Solve for x
    x = 113,857,664,771.04/366,653.60
  6. Step 6: Final answer
    x = 310,531.97

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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.