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Finding the Fourth Proportional to 416,798.30, 575,182.21 and 225,811.69

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Solution

The fourth proportional to 416,798.30, 575,182.21 and 225,811.69 is: 311,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,798.30 : 575,182.21 = 225,811.69 : x
  2. Step 2: Convert to fraction form
    416,798.30/575,182.21 = 225,811.69/x
  3. Step 3: Cross multiply
    416,798.30x = 575,182.21 × 225,811.69
  4. Step 4: Simplify right side
    416,798.30x = 129,882,866,898.04
  5. Step 5: Solve for x
    x = 129,882,866,898.04/416,798.30
  6. Step 6: Final answer
    x = 311,620.43

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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.