Home / 1,291,029.20-1,936,557.88-392,617.04

Finding the Fourth Proportional to 1,291,029.20, 1,936,557.88 and 392,617.04

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Solution

The fourth proportional to 1,291,029.20, 1,936,557.88 and 392,617.04 is: 588,929.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,029.20 : 1,936,557.88 = 392,617.04 : x
  2. Step 2: Convert to fraction form
    1,291,029.20/1,936,557.88 = 392,617.04/x
  3. Step 3: Cross multiply
    1,291,029.20x = 1,936,557.88 × 392,617.04
  4. Step 4: Simplify right side
    1,291,029.20x = 760,325,622,634.28
  5. Step 5: Solve for x
    x = 760,325,622,634.28/1,291,029.20
  6. Step 6: Final answer
    x = 588,929.84

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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.