Home / 1,291,023.36-1,936,535.04-392,463.36

Finding the Fourth Proportional to 1,291,023.36, 1,936,535.04 and 392,463.36

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Solution

The fourth proportional to 1,291,023.36, 1,936,535.04 and 392,463.36 is: 588,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,023.36 : 1,936,535.04 = 392,463.36 : x
  2. Step 2: Convert to fraction form
    1,291,023.36/1,936,535.04 = 392,463.36/x
  3. Step 3: Cross multiply
    1,291,023.36x = 1,936,535.04 × 392,463.36
  4. Step 4: Simplify right side
    1,291,023.36x = 760,019,048,556.13
  5. Step 5: Solve for x
    x = 760,019,048,556.13/1,291,023.36
  6. Step 6: Final answer
    x = 588,695.04

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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.