Home / 515,198.87-771,822.86-343,904.07

Finding the Fourth Proportional to 515,198.87, 771,822.86 and 343,904.07

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Solution

The fourth proportional to 515,198.87, 771,822.86 and 343,904.07 is: 515,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,198.87 : 771,822.86 = 343,904.07 : x
  2. Step 2: Convert to fraction form
    515,198.87/771,822.86 = 343,904.07/x
  3. Step 3: Cross multiply
    515,198.87x = 771,822.86 × 343,904.07
  4. Step 4: Simplify right side
    515,198.87x = 265,433,022,873.04
  5. Step 5: Solve for x
    x = 265,433,022,873.04/515,198.87
  6. Step 6: Final answer
    x = 515,204.98

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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.