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Finding the Fourth Proportional to 416,663.10, 574,995.96 and 225,676.50

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Solution

The fourth proportional to 416,663.10, 574,995.96 and 225,676.50 is: 311,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,663.10 : 574,995.96 = 225,676.50 : x
  2. Step 2: Convert to fraction form
    416,663.10/574,995.96 = 225,676.50/x
  3. Step 3: Cross multiply
    416,663.10x = 574,995.96 × 225,676.50
  4. Step 4: Simplify right side
    416,663.10x = 129,763,075,766.94
  5. Step 5: Solve for x
    x = 129,763,075,766.94/416,663.10
  6. Step 6: Final answer
    x = 311,434.05

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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.