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Finding the Fourth Proportional to 287,653.43, 396,873.72 and 166,770.59

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Solution

The fourth proportional to 287,653.43, 396,873.72 and 166,770.59 is: 230,092.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,653.43 : 396,873.72 = 166,770.59 : x
  2. Step 2: Convert to fraction form
    287,653.43/396,873.72 = 166,770.59/x
  3. Step 3: Cross multiply
    287,653.43x = 396,873.72 × 166,770.59
  4. Step 4: Simplify right side
    287,653.43x = 66,186,862,455.53
  5. Step 5: Solve for x
    x = 66,186,862,455.53/287,653.43
  6. Step 6: Final answer
    x = 230,092.38

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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.