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Finding the Fourth Proportional to 287,381.52, 396,586.32 and 166,592.88

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Solution

The fourth proportional to 287,381.52, 396,586.32 and 166,592.88 is: 229,898.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,381.52 : 396,586.32 = 166,592.88 : x
  2. Step 2: Convert to fraction form
    287,381.52/396,586.32 = 166,592.88/x
  3. Step 3: Cross multiply
    287,381.52x = 396,586.32 × 166,592.88
  4. Step 4: Simplify right side
    287,381.52x = 66,068,457,217.40
  5. Step 5: Solve for x
    x = 66,068,457,217.40/287,381.52
  6. Step 6: Final answer
    x = 229,898.07

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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.