Home / 685,439.58-945,608.82-413,356.27

Finding the Fourth Proportional to 685,439.58, 945,608.82 and 413,356.27

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Solution

The fourth proportional to 685,439.58, 945,608.82 and 413,356.27 is: 570,252.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,439.58 : 945,608.82 = 413,356.27 : x
  2. Step 2: Convert to fraction form
    685,439.58/945,608.82 = 413,356.27/x
  3. Step 3: Cross multiply
    685,439.58x = 945,608.82 × 413,356.27
  4. Step 4: Simplify right side
    685,439.58x = 390,873,335,896.31
  5. Step 5: Solve for x
    x = 390,873,335,896.31/685,439.58
  6. Step 6: Final answer
    x = 570,252.07

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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.