Home / 1,666,858.71-2,300,217.75-978,519.57

Finding the Fourth Proportional to 1,666,858.71, 2,300,217.75 and 978,519.57

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Solution

The fourth proportional to 1,666,858.71, 2,300,217.75 and 978,519.57 is: 1,350,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666,858.71 : 2,300,217.75 = 978,519.57 : x
  2. Step 2: Convert to fraction form
    1,666,858.71/2,300,217.75 = 978,519.57/x
  3. Step 3: Cross multiply
    1,666,858.71x = 2,300,217.75 × 978,519.57
  4. Step 4: Simplify right side
    1,666,858.71x = 2,250,808,083,636.37
  5. Step 5: Solve for x
    x = 2,250,808,083,636.37/1,666,858.71
  6. Step 6: Final answer
    x = 1,350,329.26

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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.