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Finding the Fourth Proportional to 330,617.81, 456,252.89 and 179,714.81

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Solution

The fourth proportional to 330,617.81, 456,252.89 and 179,714.81 is: 248,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,617.81 : 456,252.89 = 179,714.81 : x
  2. Step 2: Convert to fraction form
    330,617.81/456,252.89 = 179,714.81/x
  3. Step 3: Cross multiply
    330,617.81x = 456,252.89 × 179,714.81
  4. Step 4: Simplify right side
    330,617.81x = 81,995,401,680.36
  5. Step 5: Solve for x
    x = 81,995,401,680.36/330,617.81
  6. Step 6: Final answer
    x = 248,006.61

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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.