Home / 809,830.82-1,117,574.97-447,263.89

Finding the Fourth Proportional to 809,830.82, 1,117,574.97 and 447,263.89

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Solution

The fourth proportional to 809,830.82, 1,117,574.97 and 447,263.89 is: 617,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,830.82 : 1,117,574.97 = 447,263.89 : x
  2. Step 2: Convert to fraction form
    809,830.82/1,117,574.97 = 447,263.89/x
  3. Step 3: Cross multiply
    809,830.82x = 1,117,574.97 × 447,263.89
  4. Step 4: Simplify right side
    809,830.82x = 499,850,928,448.83
  5. Step 5: Solve for x
    x = 499,850,928,448.83/809,830.82
  6. Step 6: Final answer
    x = 617,228.83

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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.