Home / 1,321,151.76-1,823,198.76-717,539.76

Finding the Fourth Proportional to 1,321,151.76, 1,823,198.76 and 717,539.76

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Solution

The fourth proportional to 1,321,151.76, 1,823,198.76 and 717,539.76 is: 990,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,151.76 : 1,823,198.76 = 717,539.76 : x
  2. Step 2: Convert to fraction form
    1,321,151.76/1,823,198.76 = 717,539.76/x
  3. Step 3: Cross multiply
    1,321,151.76x = 1,823,198.76 × 717,539.76
  4. Step 4: Simplify right side
    1,321,151.76x = 1,308,217,600,682.70
  5. Step 5: Solve for x
    x = 1,308,217,600,682.70/1,321,151.76
  6. Step 6: Final answer
    x = 990,209.94

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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.