Home / 783,669.30-1,081,581.86-477,923.06

Finding the Fourth Proportional to 783,669.30, 1,081,581.86 and 477,923.06

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Solution

The fourth proportional to 783,669.30, 1,081,581.86 and 477,923.06 is: 659,605.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,669.30 : 1,081,581.86 = 477,923.06 : x
  2. Step 2: Convert to fraction form
    783,669.30/1,081,581.86 = 477,923.06/x
  3. Step 3: Cross multiply
    783,669.30x = 1,081,581.86 × 477,923.06
  4. Step 4: Simplify right side
    783,669.30x = 516,912,912,171.69
  5. Step 5: Solve for x
    x = 516,912,912,171.69/783,669.30
  6. Step 6: Final answer
    x = 659,605.92

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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.