Home / 741,287.70-1,022,994.77-418,998.83

Finding the Fourth Proportional to 741,287.70, 1,022,994.77 and 418,998.83

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Solution

The fourth proportional to 741,287.70, 1,022,994.77 and 418,998.83 is: 578,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,287.70 : 1,022,994.77 = 418,998.83 : x
  2. Step 2: Convert to fraction form
    741,287.70/1,022,994.77 = 418,998.83/x
  3. Step 3: Cross multiply
    741,287.70x = 1,022,994.77 × 418,998.83
  4. Step 4: Simplify right side
    741,287.70x = 428,633,604,516.15
  5. Step 5: Solve for x
    x = 428,633,604,516.15/741,287.70
  6. Step 6: Final answer
    x = 578,228.41

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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.