Home / 1,291,120.04-1,936,788.47-392,569.56

Finding the Fourth Proportional to 1,291,120.04, 1,936,788.47 and 392,569.56

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Solution

The fourth proportional to 1,291,120.04, 1,936,788.47 and 392,569.56 is: 588,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,120.04 : 1,936,788.47 = 392,569.56 : x
  2. Step 2: Convert to fraction form
    1,291,120.04/1,936,788.47 = 392,569.56/x
  3. Step 3: Cross multiply
    1,291,120.04x = 1,936,788.47 × 392,569.56
  4. Step 4: Simplify right side
    1,291,120.04x = 760,324,196,990.26
  5. Step 5: Solve for x
    x = 760,324,196,990.26/1,291,120.04
  6. Step 6: Final answer
    x = 588,887.30

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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.