Home / 291,020.20-436,530.30-197,708.20

Finding the Fourth Proportional to 291,020.20, 436,530.30 and 197,708.20

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Solution

The fourth proportional to 291,020.20, 436,530.30 and 197,708.20 is: 296,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,020.20 : 436,530.30 = 197,708.20 : x
  2. Step 2: Convert to fraction form
    291,020.20/436,530.30 = 197,708.20/x
  3. Step 3: Cross multiply
    291,020.20x = 436,530.30 × 197,708.20
  4. Step 4: Simplify right side
    291,020.20x = 86,305,619,858.46
  5. Step 5: Solve for x
    x = 86,305,619,858.46/291,020.20
  6. Step 6: Final answer
    x = 296,562.30

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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.