Home / 991,109.25-1,367,614.73-583,121.36

Finding the Fourth Proportional to 991,109.25, 1,367,614.73 and 583,121.36

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Solution

The fourth proportional to 991,109.25, 1,367,614.73 and 583,121.36 is: 804,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,109.25 : 1,367,614.73 = 583,121.36 : x
  2. Step 2: Convert to fraction form
    991,109.25/1,367,614.73 = 583,121.36/x
  3. Step 3: Cross multiply
    991,109.25x = 1,367,614.73 × 583,121.36
  4. Step 4: Simplify right side
    991,109.25x = 797,485,366,190.47
  5. Step 5: Solve for x
    x = 797,485,366,190.47/991,109.25
  6. Step 6: Final answer
    x = 804,639.21

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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.