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Finding the Fourth Proportional to 625,607.83, 936,896.34 and 432,942.39

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Solution

The fourth proportional to 625,607.83, 936,896.34 and 432,942.39 is: 648,364.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,607.83 : 936,896.34 = 432,942.39 : x
  2. Step 2: Convert to fraction form
    625,607.83/936,896.34 = 432,942.39/x
  3. Step 3: Cross multiply
    625,607.83x = 936,896.34 × 432,942.39
  4. Step 4: Simplify right side
    625,607.83x = 405,622,140,621.85
  5. Step 5: Solve for x
    x = 405,622,140,621.85/625,607.83
  6. Step 6: Final answer
    x = 648,364.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.