Home / 1,229,255.70-1,696,248.90-685,340.34

Finding the Fourth Proportional to 1,229,255.70, 1,696,248.90 and 685,340.34

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Solution

The fourth proportional to 1,229,255.70, 1,696,248.90 and 685,340.34 is: 945,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,255.70 : 1,696,248.90 = 685,340.34 : x
  2. Step 2: Convert to fraction form
    1,229,255.70/1,696,248.90 = 685,340.34/x
  3. Step 3: Cross multiply
    1,229,255.70x = 1,696,248.90 × 685,340.34
  4. Step 4: Simplify right side
    1,229,255.70x = 1,162,507,797,850.63
  5. Step 5: Solve for x
    x = 1,162,507,797,850.63/1,229,255.70
  6. Step 6: Final answer
    x = 945,700.56

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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.