Home / 1,557,912.40-2,336,695.80-1,276,939.60

Finding the Fourth Proportional to 1,557,912.40, 2,336,695.80 and 1,276,939.60

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Solution

The fourth proportional to 1,557,912.40, 2,336,695.80 and 1,276,939.60 is: 1,915,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,912.40 : 2,336,695.80 = 1,276,939.60 : x
  2. Step 2: Convert to fraction form
    1,557,912.40/2,336,695.80 = 1,276,939.60/x
  3. Step 3: Cross multiply
    1,557,912.40x = 2,336,695.80 × 1,276,939.60
  4. Step 4: Simplify right side
    1,557,912.40x = 2,983,819,400,173.68
  5. Step 5: Solve for x
    x = 2,983,819,400,173.68/1,557,912.40
  6. Step 6: Final answer
    x = 1,915,267.76

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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.