Home / 1,328,808.89-1,993,530.83-430,251.62

Finding the Fourth Proportional to 1,328,808.89, 1,993,530.83 and 430,251.62

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Solution

The fourth proportional to 1,328,808.89, 1,993,530.83 and 430,251.62 is: 645,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,808.89 : 1,993,530.83 = 430,251.62 : x
  2. Step 2: Convert to fraction form
    1,328,808.89/1,993,530.83 = 430,251.62/x
  3. Step 3: Cross multiply
    1,328,808.89x = 1,993,530.83 × 430,251.62
  4. Step 4: Simplify right side
    1,328,808.89x = 857,719,858,621.98
  5. Step 5: Solve for x
    x = 857,719,858,621.98/1,328,808.89
  6. Step 6: Final answer
    x = 645,480.22

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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.