Home / 408,913.83-613,323.77-109,417.95

Finding the Fourth Proportional to 408,913.83, 613,323.77 and 109,417.95

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Solution

The fourth proportional to 408,913.83, 613,323.77 and 109,417.95 is: 164,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,913.83 : 613,323.77 = 109,417.95 : x
  2. Step 2: Convert to fraction form
    408,913.83/613,323.77 = 109,417.95/x
  3. Step 3: Cross multiply
    408,913.83x = 613,323.77 × 109,417.95
  4. Step 4: Simplify right side
    408,913.83x = 67,108,629,052.58
  5. Step 5: Solve for x
    x = 67,108,629,052.58/408,913.83
  6. Step 6: Final answer
    x = 164,114.35

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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.