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Finding the Fourth Proportional to 468,621.30, 646,700.46 and 253,761.38

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Solution

The fourth proportional to 468,621.30, 646,700.46 and 253,761.38 is: 350,192.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,621.30 : 646,700.46 = 253,761.38 : x
  2. Step 2: Convert to fraction form
    468,621.30/646,700.46 = 253,761.38/x
  3. Step 3: Cross multiply
    468,621.30x = 646,700.46 × 253,761.38
  4. Step 4: Simplify right side
    468,621.30x = 164,107,597,942.73
  5. Step 5: Solve for x
    x = 164,107,597,942.73/468,621.30
  6. Step 6: Final answer
    x = 350,192.36

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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.