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Finding the Fourth Proportional to 408,651.58, 612,579.95 and 195,364.23

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Solution

The fourth proportional to 408,651.58, 612,579.95 and 195,364.23 is: 292,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,651.58 : 612,579.95 = 195,364.23 : x
  2. Step 2: Convert to fraction form
    408,651.58/612,579.95 = 195,364.23/x
  3. Step 3: Cross multiply
    408,651.58x = 612,579.95 × 195,364.23
  4. Step 4: Simplify right side
    408,651.58x = 119,676,212,835.20
  5. Step 5: Solve for x
    x = 119,676,212,835.20/408,651.58
  6. Step 6: Final answer
    x = 292,856.36

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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.