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Finding the Fourth Proportional to 468,620.05, 646,698.74 and 253,760.12

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Solution

The fourth proportional to 468,620.05, 646,698.74 and 253,760.12 is: 350,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,620.05 : 646,698.74 = 253,760.12 : x
  2. Step 2: Convert to fraction form
    468,620.05/646,698.74 = 253,760.12/x
  3. Step 3: Cross multiply
    468,620.05x = 646,698.74 × 253,760.12
  4. Step 4: Simplify right side
    468,620.05x = 164,106,348,597.45
  5. Step 5: Solve for x
    x = 164,106,348,597.45/468,620.05
  6. Step 6: Final answer
    x = 350,190.63

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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.