Home / 3,986,173-5,979,259.50-1,292,751.28

Finding the Fourth Proportional to 3,986,173, 5,979,259.50 and 1,292,751.28

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Solution

The fourth proportional to 3,986,173, 5,979,259.50 and 1,292,751.28 is: 1,939,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,173 : 5,979,259.50 = 1,292,751.28 : x
  2. Step 2: Convert to fraction form
    3,986,173/5,979,259.50 = 1,292,751.28/x
  3. Step 3: Cross multiply
    3,986,173x = 5,979,259.50 × 1,292,751.28
  4. Step 4: Simplify right side
    3,986,173x = 7,729,695,372,077.16
  5. Step 5: Solve for x
    x = 7,729,695,372,077.16/3,986,173
  6. Step 6: Final answer
    x = 1,939,126.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.