Home / 809,710.40-1,213,982.40-454,833.20

Finding the Fourth Proportional to 809,710.40, 1,213,982.40 and 454,833.20

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Solution

The fourth proportional to 809,710.40, 1,213,982.40 and 454,833.20 is: 681,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,710.40 : 1,213,982.40 = 454,833.20 : x
  2. Step 2: Convert to fraction form
    809,710.40/1,213,982.40 = 454,833.20/x
  3. Step 3: Cross multiply
    809,710.40x = 1,213,982.40 × 454,833.20
  4. Step 4: Simplify right side
    809,710.40x = 552,159,499,735.68
  5. Step 5: Solve for x
    x = 552,159,499,735.68/809,710.40
  6. Step 6: Final answer
    x = 681,922.20

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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.