Home / 405,890.70-608,922.45-125,436.30

Finding the Fourth Proportional to 405,890.70, 608,922.45 and 125,436.30

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Solution

The fourth proportional to 405,890.70, 608,922.45 and 125,436.30 is: 188,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,890.70 : 608,922.45 = 125,436.30 : x
  2. Step 2: Convert to fraction form
    405,890.70/608,922.45 = 125,436.30/x
  3. Step 3: Cross multiply
    405,890.70x = 608,922.45 × 125,436.30
  4. Step 4: Simplify right side
    405,890.70x = 76,380,979,114.94
  5. Step 5: Solve for x
    x = 76,380,979,114.94/405,890.70
  6. Step 6: Final answer
    x = 188,181.15

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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.