Home / 1,173,272.40-1,619,138.92-765,635.04

Finding the Fourth Proportional to 1,173,272.40, 1,619,138.92 and 765,635.04

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Solution

The fourth proportional to 1,173,272.40, 1,619,138.92 and 765,635.04 is: 1,056,591.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,272.40 : 1,619,138.92 = 765,635.04 : x
  2. Step 2: Convert to fraction form
    1,173,272.40/1,619,138.92 = 765,635.04/x
  3. Step 3: Cross multiply
    1,173,272.40x = 1,619,138.92 × 765,635.04
  4. Step 4: Simplify right side
    1,173,272.40x = 1,239,669,491,779.76
  5. Step 5: Solve for x
    x = 1,239,669,491,779.76/1,173,272.40
  6. Step 6: Final answer
    x = 1,056,591.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.