Home / 787,686.99-1,086,570.34-516,192.81

Finding the Fourth Proportional to 787,686.99, 1,086,570.34 and 516,192.81

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Solution

The fourth proportional to 787,686.99, 1,086,570.34 and 516,192.81 is: 712,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,686.99 : 1,086,570.34 = 516,192.81 : x
  2. Step 2: Convert to fraction form
    787,686.99/1,086,570.34 = 516,192.81/x
  3. Step 3: Cross multiply
    787,686.99x = 1,086,570.34 × 516,192.81
  4. Step 4: Simplify right side
    787,686.99x = 560,879,797,067.26
  5. Step 5: Solve for x
    x = 560,879,797,067.26/787,686.99
  6. Step 6: Final answer
    x = 712,059.24

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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.