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Finding the Fourth Proportional to 625,609,906.40, 938,131,424.40 and 237,303,682.40

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Solution

The fourth proportional to 625,609,906.40, 938,131,424.40 and 237,303,682.40 is: 355,848,012.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,609,906.40 : 938,131,424.40 = 237,303,682.40 : x
  2. Step 2: Convert to fraction form
    625,609,906.40/938,131,424.40 = 237,303,682.40/x
  3. Step 3: Cross multiply
    625,609,906.40x = 938,131,424.40 × 237,303,682.40
  4. Step 4: Simplify right side
    625,609,906.40x = 222,622,041,585,277,216
  5. Step 5: Solve for x
    x = 222,622,041,585,277,216/625,609,906.40
  6. Step 6: Final answer
    x = 355,848,012.17

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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.