Home / 1,778,690.40-2,669,785.20-881,145.60

Finding the Fourth Proportional to 1,778,690.40, 2,669,785.20 and 881,145.60

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Solution

The fourth proportional to 1,778,690.40, 2,669,785.20 and 881,145.60 is: 1,322,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,690.40 : 2,669,785.20 = 881,145.60 : x
  2. Step 2: Convert to fraction form
    1,778,690.40/2,669,785.20 = 881,145.60/x
  3. Step 3: Cross multiply
    1,778,690.40x = 2,669,785.20 × 881,145.60
  4. Step 4: Simplify right side
    1,778,690.40x = 2,352,469,481,925.12
  5. Step 5: Solve for x
    x = 2,352,469,481,925.12/1,778,690.40
  6. Step 6: Final answer
    x = 1,322,585.13

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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.