Home / 1,286,919.90-1,776,162.06-714,144.60

Finding the Fourth Proportional to 1,286,919.90, 1,776,162.06 and 714,144.60

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Solution

The fourth proportional to 1,286,919.90, 1,776,162.06 and 714,144.60 is: 985,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,919.90 : 1,776,162.06 = 714,144.60 : x
  2. Step 2: Convert to fraction form
    1,286,919.90/1,776,162.06 = 714,144.60/x
  3. Step 3: Cross multiply
    1,286,919.90x = 1,776,162.06 × 714,144.60
  4. Step 4: Simplify right side
    1,286,919.90x = 1,268,436,543,873.88
  5. Step 5: Solve for x
    x = 1,268,436,543,873.88/1,286,919.90
  6. Step 6: Final answer
    x = 985,637.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.