Home / 405,986.40-608,979.60-196,034.40

Finding the Fourth Proportional to 405,986.40, 608,979.60 and 196,034.40

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Solution

The fourth proportional to 405,986.40, 608,979.60 and 196,034.40 is: 294,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,986.40 : 608,979.60 = 196,034.40 : x
  2. Step 2: Convert to fraction form
    405,986.40/608,979.60 = 196,034.40/x
  3. Step 3: Cross multiply
    405,986.40x = 608,979.60 × 196,034.40
  4. Step 4: Simplify right side
    405,986.40x = 119,380,950,498.24
  5. Step 5: Solve for x
    x = 119,380,950,498.24/405,986.40
  6. Step 6: Final answer
    x = 294,051.60

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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.