Home / 810,604.16-1,215,977.52-211,560.56

Finding the Fourth Proportional to 810,604.16, 1,215,977.52 and 211,560.56

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Solution

The fourth proportional to 810,604.16, 1,215,977.52 and 211,560.56 is: 317,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,604.16 : 1,215,977.52 = 211,560.56 : x
  2. Step 2: Convert to fraction form
    810,604.16/1,215,977.52 = 211,560.56/x
  3. Step 3: Cross multiply
    810,604.16x = 1,215,977.52 × 211,560.56
  4. Step 4: Simplify right side
    810,604.16x = 257,252,885,078.61
  5. Step 5: Solve for x
    x = 257,252,885,078.61/810,604.16
  6. Step 6: Final answer
    x = 317,359.44

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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.