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Finding the Fourth Proportional to 996,060.28, 1,375,859.64 and 805,791.28

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Solution

The fourth proportional to 996,060.28, 1,375,859.64 and 805,791.28 is: 1,113,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,060.28 : 1,375,859.64 = 805,791.28 : x
  2. Step 2: Convert to fraction form
    996,060.28/1,375,859.64 = 805,791.28/x
  3. Step 3: Cross multiply
    996,060.28x = 1,375,859.64 × 805,791.28
  4. Step 4: Simplify right side
    996,060.28x = 1,108,655,700,415.94
  5. Step 5: Solve for x
    x = 1,108,655,700,415.94/996,060.28
  6. Step 6: Final answer
    x = 1,113,040.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.