Home / 1,119,855.60-1,679,783.40-839,919.60

Finding the Fourth Proportional to 1,119,855.60, 1,679,783.40 and 839,919.60

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Solution

The fourth proportional to 1,119,855.60, 1,679,783.40 and 839,919.60 is: 1,259,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,855.60 : 1,679,783.40 = 839,919.60 : x
  2. Step 2: Convert to fraction form
    1,119,855.60/1,679,783.40 = 839,919.60/x
  3. Step 3: Cross multiply
    1,119,855.60x = 1,679,783.40 × 839,919.60
  4. Step 4: Simplify right side
    1,119,855.60x = 1,410,883,001,414.64
  5. Step 5: Solve for x
    x = 1,410,883,001,414.64/1,119,855.60
  6. Step 6: Final answer
    x = 1,259,879.40

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Similar ratio
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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.