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Finding the Fourth Proportional to 260,050.78, 389,445.59 and 179,863.70

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Solution

The fourth proportional to 260,050.78, 389,445.59 and 179,863.70 is: 269,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,050.78 : 389,445.59 = 179,863.70 : x
  2. Step 2: Convert to fraction form
    260,050.78/389,445.59 = 179,863.70/x
  3. Step 3: Cross multiply
    260,050.78x = 389,445.59 × 179,863.70
  4. Step 4: Simplify right side
    260,050.78x = 70,047,124,766.08
  5. Step 5: Solve for x
    x = 70,047,124,766.08/260,050.78
  6. Step 6: Final answer
    x = 269,359.41

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1.5x scale

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.