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Finding the Fourth Proportional to 330,761.70, 456,438.51 and 179,858.70

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Solution

The fourth proportional to 330,761.70, 456,438.51 and 179,858.70 is: 248,198.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,761.70 : 456,438.51 = 179,858.70 : x
  2. Step 2: Convert to fraction form
    330,761.70/456,438.51 = 179,858.70/x
  3. Step 3: Cross multiply
    330,761.70x = 456,438.51 × 179,858.70
  4. Step 4: Simplify right side
    330,761.70x = 82,094,437,038.54
  5. Step 5: Solve for x
    x = 82,094,437,038.54/330,761.70
  6. Step 6: Final answer
    x = 248,198.13

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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.