Home / 1,165,288.57-1,608,141.65-642,020.44

Finding the Fourth Proportional to 1,165,288.57, 1,608,141.65 and 642,020.44

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Solution

The fourth proportional to 1,165,288.57, 1,608,141.65 and 642,020.44 is: 886,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,288.57 : 1,608,141.65 = 642,020.44 : x
  2. Step 2: Convert to fraction form
    1,165,288.57/1,608,141.65 = 642,020.44/x
  3. Step 3: Cross multiply
    1,165,288.57x = 1,608,141.65 × 642,020.44
  4. Step 4: Simplify right side
    1,165,288.57x = 1,032,459,809,715.33
  5. Step 5: Solve for x
    x = 1,032,459,809,715.33/1,165,288.57
  6. Step 6: Final answer
    x = 886,012.13

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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.