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Finding the Fourth Proportional to 638,551.53, 957,180.51 and 414,054.36

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Solution

The fourth proportional to 638,551.53, 957,180.51 and 414,054.36 is: 620,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,551.53 : 957,180.51 = 414,054.36 : x
  2. Step 2: Convert to fraction form
    638,551.53/957,180.51 = 414,054.36/x
  3. Step 3: Cross multiply
    638,551.53x = 957,180.51 × 414,054.36
  4. Step 4: Simplify right side
    638,551.53x = 396,324,763,472.52
  5. Step 5: Solve for x
    x = 396,324,763,472.52/638,551.53
  6. Step 6: Final answer
    x = 620,662.15

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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.