Home / 1,378,624.44-1,900,393.24-969,611.72

Finding the Fourth Proportional to 1,378,624.44, 1,900,393.24 and 969,611.72

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Solution

The fourth proportional to 1,378,624.44, 1,900,393.24 and 969,611.72 is: 1,336,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,624.44 : 1,900,393.24 = 969,611.72 : x
  2. Step 2: Convert to fraction form
    1,378,624.44/1,900,393.24 = 969,611.72/x
  3. Step 3: Cross multiply
    1,378,624.44x = 1,900,393.24 × 969,611.72
  4. Step 4: Simplify right side
    1,378,624.44x = 1,842,643,558,112.77
  5. Step 5: Solve for x
    x = 1,842,643,558,112.77/1,378,624.44
  6. Step 6: Final answer
    x = 1,336,581.24

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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.