Home / 825,195.36-1,139,142.60-519,720.66

Finding the Fourth Proportional to 825,195.36, 1,139,142.60 and 519,720.66

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Solution

The fourth proportional to 825,195.36, 1,139,142.60 and 519,720.66 is: 717,449.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,195.36 : 1,139,142.60 = 519,720.66 : x
  2. Step 2: Convert to fraction form
    825,195.36/1,139,142.60 = 519,720.66/x
  3. Step 3: Cross multiply
    825,195.36x = 1,139,142.60 × 519,720.66
  4. Step 4: Simplify right side
    825,195.36x = 592,035,943,906.12
  5. Step 5: Solve for x
    x = 592,035,943,906.12/825,195.36
  6. Step 6: Final answer
    x = 717,449.43

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1.5x scale

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.