Home / 1,328,833.08-1,993,540.31-430,365.64

Finding the Fourth Proportional to 1,328,833.08, 1,993,540.31 and 430,365.64

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Solution

The fourth proportional to 1,328,833.08, 1,993,540.31 and 430,365.64 is: 645,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,833.08 : 1,993,540.31 = 430,365.64 : x
  2. Step 2: Convert to fraction form
    1,328,833.08/1,993,540.31 = 430,365.64/x
  3. Step 3: Cross multiply
    1,328,833.08x = 1,993,540.31 × 430,365.64
  4. Step 4: Simplify right side
    1,328,833.08x = 857,951,251,378.95
  5. Step 5: Solve for x
    x = 857,951,251,378.95/1,328,833.08
  6. Step 6: Final answer
    x = 645,642.60

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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.