Home / 1,165,287.57-1,608,140.27-642,019.44

Finding the Fourth Proportional to 1,165,287.57, 1,608,140.27 and 642,019.44

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Solution

The fourth proportional to 1,165,287.57, 1,608,140.27 and 642,019.44 is: 886,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,287.57 : 1,608,140.27 = 642,019.44 : x
  2. Step 2: Convert to fraction form
    1,165,287.57/1,608,140.27 = 642,019.44/x
  3. Step 3: Cross multiply
    1,165,287.57x = 1,608,140.27 × 642,019.44
  4. Step 4: Simplify right side
    1,165,287.57x = 1,032,457,315,586.85
  5. Step 5: Solve for x
    x = 1,032,457,315,586.85/1,165,287.57
  6. Step 6: Final answer
    x = 886,010.75

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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.