Home / 859,969.20-1,289,953.80-741,871.20

Finding the Fourth Proportional to 859,969.20, 1,289,953.80 and 741,871.20

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Solution

The fourth proportional to 859,969.20, 1,289,953.80 and 741,871.20 is: 1,112,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,969.20 : 1,289,953.80 = 741,871.20 : x
  2. Step 2: Convert to fraction form
    859,969.20/1,289,953.80 = 741,871.20/x
  3. Step 3: Cross multiply
    859,969.20x = 1,289,953.80 × 741,871.20
  4. Step 4: Simplify right side
    859,969.20x = 956,979,573,550.56
  5. Step 5: Solve for x
    x = 956,979,573,550.56/859,969.20
  6. Step 6: Final answer
    x = 1,112,806.80

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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.