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Finding the Fourth Proportional to 625,273.22, 863,174.55 and 418,896.96

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Solution

The fourth proportional to 625,273.22, 863,174.55 and 418,896.96 is: 578,277.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,273.22 : 863,174.55 = 418,896.96 : x
  2. Step 2: Convert to fraction form
    625,273.22/863,174.55 = 418,896.96/x
  3. Step 3: Cross multiply
    625,273.22x = 863,174.55 × 418,896.96
  4. Step 4: Simplify right side
    625,273.22x = 361,581,194,944.37
  5. Step 5: Solve for x
    x = 361,581,194,944.37/625,273.22
  6. Step 6: Final answer
    x = 578,277.12

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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.