Home / 260,880.27-391,301.28-83,339.61

Finding the Fourth Proportional to 260,880.27, 391,301.28 and 83,339.61

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Solution

The fourth proportional to 260,880.27, 391,301.28 and 83,339.61 is: 125,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,880.27 : 391,301.28 = 83,339.61 : x
  2. Step 2: Convert to fraction form
    260,880.27/391,301.28 = 83,339.61/x
  3. Step 3: Cross multiply
    260,880.27x = 391,301.28 × 83,339.61
  4. Step 4: Simplify right side
    260,880.27x = 32,610,896,067.70
  5. Step 5: Solve for x
    x = 32,610,896,067.70/260,880.27
  6. Step 6: Final answer
    x = 125,003.31

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1.5x scale

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.