Home / 1,245,296.60-1,717,999.44-919,389.32

Finding the Fourth Proportional to 1,245,296.60, 1,717,999.44 and 919,389.32

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Solution

The fourth proportional to 1,245,296.60, 1,717,999.44 and 919,389.32 is: 1,268,380.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,296.60 : 1,717,999.44 = 919,389.32 : x
  2. Step 2: Convert to fraction form
    1,245,296.60/1,717,999.44 = 919,389.32/x
  3. Step 3: Cross multiply
    1,245,296.60x = 1,717,999.44 × 919,389.32
  4. Step 4: Simplify right side
    1,245,296.60x = 1,579,510,336,901.98
  5. Step 5: Solve for x
    x = 1,579,510,336,901.98/1,245,296.60
  6. Step 6: Final answer
    x = 1,268,380.83

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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.