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Finding the Fourth Proportional to 330,902.92, 456,804.66 and 203,687.56

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Solution

The fourth proportional to 330,902.92, 456,804.66 and 203,687.56 is: 281,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,902.92 : 456,804.66 = 203,687.56 : x
  2. Step 2: Convert to fraction form
    330,902.92/456,804.66 = 203,687.56/x
  3. Step 3: Cross multiply
    330,902.92x = 456,804.66 × 203,687.56
  4. Step 4: Simplify right side
    330,902.92x = 93,045,426,592.03
  5. Step 5: Solve for x
    x = 93,045,426,592.03/330,902.92
  6. Step 6: Final answer
    x = 281,186.48

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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.