Home / 263,619.60-395,429.40-193,117.20

Finding the Fourth Proportional to 263,619.60, 395,429.40 and 193,117.20

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Solution

The fourth proportional to 263,619.60, 395,429.40 and 193,117.20 is: 289,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,619.60 : 395,429.40 = 193,117.20 : x
  2. Step 2: Convert to fraction form
    263,619.60/395,429.40 = 193,117.20/x
  3. Step 3: Cross multiply
    263,619.60x = 395,429.40 × 193,117.20
  4. Step 4: Simplify right side
    263,619.60x = 76,364,218,525.68
  5. Step 5: Solve for x
    x = 76,364,218,525.68/263,619.60
  6. Step 6: Final answer
    x = 289,675.80

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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.