Home / 410,739.29-616,340.90-221,195.64

Finding the Fourth Proportional to 410,739.29, 616,340.90 and 221,195.64

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Solution

The fourth proportional to 410,739.29, 616,340.90 and 221,195.64 is: 331,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,739.29 : 616,340.90 = 221,195.64 : x
  2. Step 2: Convert to fraction form
    410,739.29/616,340.90 = 221,195.64/x
  3. Step 3: Cross multiply
    410,739.29x = 616,340.90 × 221,195.64
  4. Step 4: Simplify right side
    410,739.29x = 136,331,919,833.68
  5. Step 5: Solve for x
    x = 136,331,919,833.68/410,739.29
  6. Step 6: Final answer
    x = 331,918.38

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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.