Home / 1,621,764.90-2,238,082.28-896,659.43

Finding the Fourth Proportional to 1,621,764.90, 2,238,082.28 and 896,659.43

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Solution

The fourth proportional to 1,621,764.90, 2,238,082.28 and 896,659.43 is: 1,237,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,764.90 : 2,238,082.28 = 896,659.43 : x
  2. Step 2: Convert to fraction form
    1,621,764.90/2,238,082.28 = 896,659.43/x
  3. Step 3: Cross multiply
    1,621,764.90x = 2,238,082.28 × 896,659.43
  4. Step 4: Simplify right side
    1,621,764.90x = 2,006,797,589,314.76
  5. Step 5: Solve for x
    x = 2,006,797,589,314.76/1,621,764.90
  6. Step 6: Final answer
    x = 1,237,415.85

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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.