Home / 1,991,353.82-2,986,412.29-711,783.86

Finding the Fourth Proportional to 1,991,353.82, 2,986,412.29 and 711,783.86

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Solution

The fourth proportional to 1,991,353.82, 2,986,412.29 and 711,783.86 is: 1,067,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,353.82 : 2,986,412.29 = 711,783.86 : x
  2. Step 2: Convert to fraction form
    1,991,353.82/2,986,412.29 = 711,783.86/x
  3. Step 3: Cross multiply
    1,991,353.82x = 2,986,412.29 × 711,783.86
  4. Step 4: Simplify right side
    1,991,353.82x = 2,125,680,050,616.12
  5. Step 5: Solve for x
    x = 2,125,680,050,616.12/1,991,353.82
  6. Step 6: Final answer
    x = 1,067,454.73

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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.