Home / 1,185,323.64-1,635,734.16-641,447.52

Finding the Fourth Proportional to 1,185,323.64, 1,635,734.16 and 641,447.52

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Solution

The fourth proportional to 1,185,323.64, 1,635,734.16 and 641,447.52 is: 885,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,323.64 : 1,635,734.16 = 641,447.52 : x
  2. Step 2: Convert to fraction form
    1,185,323.64/1,635,734.16 = 641,447.52/x
  3. Step 3: Cross multiply
    1,185,323.64x = 1,635,734.16 × 641,447.52
  4. Step 4: Simplify right side
    1,185,323.64x = 1,049,237,620,311.28
  5. Step 5: Solve for x
    x = 1,049,237,620,311.28/1,185,323.64
  6. Step 6: Final answer
    x = 885,190.83

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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.