Home / 445,517.40-668,276.10-414,024.60

Finding the Fourth Proportional to 445,517.40, 668,276.10 and 414,024.60

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Solution

The fourth proportional to 445,517.40, 668,276.10 and 414,024.60 is: 621,036.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,517.40 : 668,276.10 = 414,024.60 : x
  2. Step 2: Convert to fraction form
    445,517.40/668,276.10 = 414,024.60/x
  3. Step 3: Cross multiply
    445,517.40x = 668,276.10 × 414,024.60
  4. Step 4: Simplify right side
    445,517.40x = 276,682,744,992.06
  5. Step 5: Solve for x
    x = 276,682,744,992.06/445,517.40
  6. Step 6: Final answer
    x = 621,036.90

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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.