Home / 809,163.20-1,215,127.20-529,918.40

Finding the Fourth Proportional to 809,163.20, 1,215,127.20 and 529,918.40

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Solution

The fourth proportional to 809,163.20, 1,215,127.20 and 529,918.40 is: 795,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,163.20 : 1,215,127.20 = 529,918.40 : x
  2. Step 2: Convert to fraction form
    809,163.20/1,215,127.20 = 529,918.40/x
  3. Step 3: Cross multiply
    809,163.20x = 1,215,127.20 × 529,918.40
  4. Step 4: Simplify right side
    809,163.20x = 643,918,261,620.48
  5. Step 5: Solve for x
    x = 643,918,261,620.48/809,163.20
  6. Step 6: Final answer
    x = 795,782.93

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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.