Home / 666,530.24-999,943.31-261,761.49

Finding the Fourth Proportional to 666,530.24, 999,943.31 and 261,761.49

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Solution

The fourth proportional to 666,530.24, 999,943.31 and 261,761.49 is: 392,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,530.24 : 999,943.31 = 261,761.49 : x
  2. Step 2: Convert to fraction form
    666,530.24/999,943.31 = 261,761.49/x
  3. Step 3: Cross multiply
    666,530.24x = 999,943.31 × 261,761.49
  4. Step 4: Simplify right side
    666,530.24x = 261,746,651,395.54
  5. Step 5: Solve for x
    x = 261,746,651,395.54/666,530.24
  6. Step 6: Final answer
    x = 392,700.34

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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.