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Finding the Fourth Proportional to 324,856.56, 448,357.41 and 188,969.30

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Solution

The fourth proportional to 324,856.56, 448,357.41 and 188,969.30 is: 260,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,856.56 : 448,357.41 = 188,969.30 : x
  2. Step 2: Convert to fraction form
    324,856.56/448,357.41 = 188,969.30/x
  3. Step 3: Cross multiply
    324,856.56x = 448,357.41 × 188,969.30
  4. Step 4: Simplify right side
    324,856.56x = 84,725,785,917.51
  5. Step 5: Solve for x
    x = 84,725,785,917.51/324,856.56
  6. Step 6: Final answer
    x = 260,809.84

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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.