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Finding the Fourth Proportional to 416,957.56, 625,313.64 and 189,121.36

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Solution

The fourth proportional to 416,957.56, 625,313.64 and 189,121.36 is: 283,626.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,957.56 : 625,313.64 = 189,121.36 : x
  2. Step 2: Convert to fraction form
    416,957.56/625,313.64 = 189,121.36/x
  3. Step 3: Cross multiply
    416,957.56x = 625,313.64 × 189,121.36
  4. Step 4: Simplify right side
    416,957.56x = 118,260,167,476.29
  5. Step 5: Solve for x
    x = 118,260,167,476.29/416,957.56
  6. Step 6: Final answer
    x = 283,626.39

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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.