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Finding the Fourth Proportional to 416,666.32, 624,163.56 and 191,713.36

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Solution

The fourth proportional to 416,666.32, 624,163.56 and 191,713.36 is: 287,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,666.32 : 624,163.56 = 191,713.36 : x
  2. Step 2: Convert to fraction form
    416,666.32/624,163.56 = 191,713.36/x
  3. Step 3: Cross multiply
    416,666.32x = 624,163.56 × 191,713.36
  4. Step 4: Simplify right side
    416,666.32x = 119,660,493,277.16
  5. Step 5: Solve for x
    x = 119,660,493,277.16/416,666.32
  6. Step 6: Final answer
    x = 287,185.42

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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.