Home / 1,761,723.20-2,640,511.20-919,841.60

Finding the Fourth Proportional to 1,761,723.20, 2,640,511.20 and 919,841.60

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Solution

The fourth proportional to 1,761,723.20, 2,640,511.20 and 919,841.60 is: 1,378,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,723.20 : 2,640,511.20 = 919,841.60 : x
  2. Step 2: Convert to fraction form
    1,761,723.20/2,640,511.20 = 919,841.60/x
  3. Step 3: Cross multiply
    1,761,723.20x = 2,640,511.20 × 919,841.60
  4. Step 4: Simplify right side
    1,761,723.20x = 2,428,852,047,025.92
  5. Step 5: Solve for x
    x = 2,428,852,047,025.92/1,761,723.20
  6. Step 6: Final answer
    x = 1,378,679.72

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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.