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Finding the Fourth Proportional to 330,620.70, 456,256.86 and 179,717.70

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Solution

The fourth proportional to 330,620.70, 456,256.86 and 179,717.70 is: 248,010.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,620.70 : 456,256.86 = 179,717.70 : x
  2. Step 2: Convert to fraction form
    330,620.70/456,256.86 = 179,717.70/x
  3. Step 3: Cross multiply
    330,620.70x = 456,256.86 × 179,717.70
  4. Step 4: Simplify right side
    330,620.70x = 81,997,433,488.42
  5. Step 5: Solve for x
    x = 81,997,433,488.42/330,620.70
  6. Step 6: Final answer
    x = 248,010.59

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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.