Home / 1,906,853.90-2,629,301.92-1,217,619.50

Finding the Fourth Proportional to 1,906,853.90, 2,629,301.92 and 1,217,619.50

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Solution

The fourth proportional to 1,906,853.90, 2,629,301.92 and 1,217,619.50 is: 1,678,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906,853.90 : 2,629,301.92 = 1,217,619.50 : x
  2. Step 2: Convert to fraction form
    1,906,853.90/2,629,301.92 = 1,217,619.50/x
  3. Step 3: Cross multiply
    1,906,853.90x = 2,629,301.92 × 1,217,619.50
  4. Step 4: Simplify right side
    1,906,853.90x = 3,201,489,272,988.88
  5. Step 5: Solve for x
    x = 3,201,489,272,988.88/1,906,853.90
  6. Step 6: Final answer
    x = 1,678,937.90

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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.