Home / 809,221.82-1,116,726.10-451,525.82

Finding the Fourth Proportional to 809,221.82, 1,116,726.10 and 451,525.82

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Solution

The fourth proportional to 809,221.82, 1,116,726.10 and 451,525.82 is: 623,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,221.82 : 1,116,726.10 = 451,525.82 : x
  2. Step 2: Convert to fraction form
    809,221.82/1,116,726.10 = 451,525.82/x
  3. Step 3: Cross multiply
    809,221.82x = 1,116,726.10 × 451,525.82
  4. Step 4: Simplify right side
    809,221.82x = 504,230,668,017.90
  5. Step 5: Solve for x
    x = 504,230,668,017.90/809,221.82
  6. Step 6: Final answer
    x = 623,105.63

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Double scale
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1.5x scale

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.