Home / 1,233,999.80-1,851,129.30-392,355.80

Finding the Fourth Proportional to 1,233,999.80, 1,851,129.30 and 392,355.80

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Solution

The fourth proportional to 1,233,999.80, 1,851,129.30 and 392,355.80 is: 588,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,999.80 : 1,851,129.30 = 392,355.80 : x
  2. Step 2: Convert to fraction form
    1,233,999.80/1,851,129.30 = 392,355.80/x
  3. Step 3: Cross multiply
    1,233,999.80x = 1,851,129.30 × 392,355.80
  4. Step 4: Simplify right side
    1,233,999.80x = 726,301,317,404.94
  5. Step 5: Solve for x
    x = 726,301,317,404.94/1,233,999.80
  6. Step 6: Final answer
    x = 588,574.91

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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.