Home / 805,065.83-1,207,599.44-378,288.62

Finding the Fourth Proportional to 805,065.83, 1,207,599.44 and 378,288.62

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Solution

The fourth proportional to 805,065.83, 1,207,599.44 and 378,288.62 is: 567,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,065.83 : 1,207,599.44 = 378,288.62 : x
  2. Step 2: Convert to fraction form
    805,065.83/1,207,599.44 = 378,288.62/x
  3. Step 3: Cross multiply
    805,065.83x = 1,207,599.44 × 378,288.62
  4. Step 4: Simplify right side
    805,065.83x = 456,821,120,571.24
  5. Step 5: Solve for x
    x = 456,821,120,571.24/805,065.83
  6. Step 6: Final answer
    x = 567,433.25

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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.