Home / 661,579.77-992,697.53-262,211.61

Finding the Fourth Proportional to 661,579.77, 992,697.53 and 262,211.61

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Solution

The fourth proportional to 661,579.77, 992,697.53 and 262,211.61 is: 393,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,579.77 : 992,697.53 = 262,211.61 : x
  2. Step 2: Convert to fraction form
    661,579.77/992,697.53 = 262,211.61/x
  3. Step 3: Cross multiply
    661,579.77x = 992,697.53 × 262,211.61
  4. Step 4: Simplify right side
    661,579.77x = 260,296,816,273.27
  5. Step 5: Solve for x
    x = 260,296,816,273.27/661,579.77
  6. Step 6: Final answer
    x = 393,447.36

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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.