Home / 1,392,198.40-2,085,532.80-829,561.60

Finding the Fourth Proportional to 1,392,198.40, 2,085,532.80 and 829,561.60

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Solution

The fourth proportional to 1,392,198.40, 2,085,532.80 and 829,561.60 is: 1,242,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,198.40 : 2,085,532.80 = 829,561.60 : x
  2. Step 2: Convert to fraction form
    1,392,198.40/2,085,532.80 = 829,561.60/x
  3. Step 3: Cross multiply
    1,392,198.40x = 2,085,532.80 × 829,561.60
  4. Step 4: Simplify right side
    1,392,198.40x = 1,730,077,926,420.48
  5. Step 5: Solve for x
    x = 1,730,077,926,420.48/1,392,198.40
  6. Step 6: Final answer
    x = 1,242,694.95

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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.