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Finding the Fourth Proportional to 330,809.04, 456,620.44 and 187,664.24

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Solution

The fourth proportional to 330,809.04, 456,620.44 and 187,664.24 is: 259,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,809.04 : 456,620.44 = 187,664.24 : x
  2. Step 2: Convert to fraction form
    330,809.04/456,620.44 = 187,664.24/x
  3. Step 3: Cross multiply
    330,809.04x = 456,620.44 × 187,664.24
  4. Step 4: Simplify right side
    330,809.04x = 85,691,327,841.07
  5. Step 5: Solve for x
    x = 85,691,327,841.07/330,809.04
  6. Step 6: Final answer
    x = 259,035.63

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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.