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Finding the Fourth Proportional to 363,863.10, 545,794.65 and 275,289.60

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Solution

The fourth proportional to 363,863.10, 545,794.65 and 275,289.60 is: 412,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,863.10 : 545,794.65 = 275,289.60 : x
  2. Step 2: Convert to fraction form
    363,863.10/545,794.65 = 275,289.60/x
  3. Step 3: Cross multiply
    363,863.10x = 545,794.65 × 275,289.60
  4. Step 4: Simplify right side
    363,863.10x = 150,251,590,880.64
  5. Step 5: Solve for x
    x = 150,251,590,880.64/363,863.10
  6. Step 6: Final answer
    x = 412,934.40

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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.