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Finding the Fourth Proportional to 468,620.85, 646,695.61 and 253,760.90

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Solution

The fourth proportional to 468,620.85, 646,695.61 and 253,760.90 is: 350,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,620.85 : 646,695.61 = 253,760.90 : x
  2. Step 2: Convert to fraction form
    468,620.85/646,695.61 = 253,760.90/x
  3. Step 3: Cross multiply
    468,620.85x = 646,695.61 × 253,760.90
  4. Step 4: Simplify right side
    468,620.85x = 164,106,060,019.65
  5. Step 5: Solve for x
    x = 164,106,060,019.65/468,620.85
  6. Step 6: Final answer
    x = 350,189.41

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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.