Home / 1,405,403.37-1,939,457.31-760,823.57

Finding the Fourth Proportional to 1,405,403.37, 1,939,457.31 and 760,823.57

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Solution

The fourth proportional to 1,405,403.37, 1,939,457.31 and 760,823.57 is: 1,049,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,403.37 : 1,939,457.31 = 760,823.57 : x
  2. Step 2: Convert to fraction form
    1,405,403.37/1,939,457.31 = 760,823.57/x
  3. Step 3: Cross multiply
    1,405,403.37x = 1,939,457.31 × 760,823.57
  4. Step 4: Simplify right side
    1,405,403.37x = 1,475,584,825,804.04
  5. Step 5: Solve for x
    x = 1,475,584,825,804.04/1,405,403.37
  6. Step 6: Final answer
    x = 1,049,936.88

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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.