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Finding the Fourth Proportional to 531,091.15, 732,896.52 and 289,375.72

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Solution

The fourth proportional to 531,091.15, 732,896.52 and 289,375.72 is: 399,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,091.15 : 732,896.52 = 289,375.72 : x
  2. Step 2: Convert to fraction form
    531,091.15/732,896.52 = 289,375.72/x
  3. Step 3: Cross multiply
    531,091.15x = 732,896.52 × 289,375.72
  4. Step 4: Simplify right side
    531,091.15x = 212,082,458,160.49
  5. Step 5: Solve for x
    x = 212,082,458,160.49/531,091.15
  6. Step 6: Final answer
    x = 399,333.44

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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.