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Finding the Fourth Proportional to 256,858.40, 354,309.60 and 169,644.04

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Solution

The fourth proportional to 256,858.40, 354,309.60 and 169,644.04 is: 234,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,858.40 : 354,309.60 = 169,644.04 : x
  2. Step 2: Convert to fraction form
    256,858.40/354,309.60 = 169,644.04/x
  3. Step 3: Cross multiply
    256,858.40x = 354,309.60 × 169,644.04
  4. Step 4: Simplify right side
    256,858.40x = 60,106,511,954.78
  5. Step 5: Solve for x
    x = 60,106,511,954.78/256,858.40
  6. Step 6: Final answer
    x = 234,006.41

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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.