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Finding the Fourth Proportional to 330,699.09, 456,447.42 and 203,300.88

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Solution

The fourth proportional to 330,699.09, 456,447.42 and 203,300.88 is: 280,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,699.09 : 456,447.42 = 203,300.88 : x
  2. Step 2: Convert to fraction form
    330,699.09/456,447.42 = 203,300.88/x
  3. Step 3: Cross multiply
    330,699.09x = 456,447.42 × 203,300.88
  4. Step 4: Simplify right side
    330,699.09x = 92,796,162,159.73
  5. Step 5: Solve for x
    x = 92,796,162,159.73/330,699.09
  6. Step 6: Final answer
    x = 280,606.04

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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.