Home / 1,761,668.18-2,642,557.10-838,221.78

Finding the Fourth Proportional to 1,761,668.18, 2,642,557.10 and 838,221.78

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Solution

The fourth proportional to 1,761,668.18, 2,642,557.10 and 838,221.78 is: 1,257,358.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,668.18 : 2,642,557.10 = 838,221.78 : x
  2. Step 2: Convert to fraction form
    1,761,668.18/2,642,557.10 = 838,221.78/x
  3. Step 3: Cross multiply
    1,761,668.18x = 2,642,557.10 × 838,221.78
  4. Step 4: Simplify right side
    1,761,668.18x = 2,215,048,911,922.53
  5. Step 5: Solve for x
    x = 2,215,048,911,922.53/1,761,668.18
  6. Step 6: Final answer
    x = 1,257,358.76

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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.