Home / 1,210,908.80-1,815,067.20-411,449.60

Finding the Fourth Proportional to 1,210,908.80, 1,815,067.20 and 411,449.60

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Solution

The fourth proportional to 1,210,908.80, 1,815,067.20 and 411,449.60 is: 616,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,908.80 : 1,815,067.20 = 411,449.60 : x
  2. Step 2: Convert to fraction form
    1,210,908.80/1,815,067.20 = 411,449.60/x
  3. Step 3: Cross multiply
    1,210,908.80x = 1,815,067.20 × 411,449.60
  4. Step 4: Simplify right side
    1,210,908.80x = 746,808,673,413.12
  5. Step 5: Solve for x
    x = 746,808,673,413.12/1,210,908.80
  6. Step 6: Final answer
    x = 616,734.04

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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.