Home / 515,965.10-773,911.20-178,924.10

Finding the Fourth Proportional to 515,965.10, 773,911.20 and 178,924.10

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Solution

The fourth proportional to 515,965.10, 773,911.20 and 178,924.10 is: 268,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,965.10 : 773,911.20 = 178,924.10 : x
  2. Step 2: Convert to fraction form
    515,965.10/773,911.20 = 178,924.10/x
  3. Step 3: Cross multiply
    515,965.10x = 773,911.20 × 178,924.10
  4. Step 4: Simplify right side
    515,965.10x = 138,471,364,939.92
  5. Step 5: Solve for x
    x = 138,471,364,939.92/515,965.10
  6. Step 6: Final answer
    x = 268,373.51

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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.