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Finding the Fourth Proportional to 363,880.20, 545,820.30 and 325,826.40

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Solution

The fourth proportional to 363,880.20, 545,820.30 and 325,826.40 is: 488,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,880.20 : 545,820.30 = 325,826.40 : x
  2. Step 2: Convert to fraction form
    363,880.20/545,820.30 = 325,826.40/x
  3. Step 3: Cross multiply
    363,880.20x = 545,820.30 × 325,826.40
  4. Step 4: Simplify right side
    363,880.20x = 177,842,663,395.92
  5. Step 5: Solve for x
    x = 177,842,663,395.92/363,880.20
  6. Step 6: Final answer
    x = 488,739.60

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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.