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Finding the Fourth Proportional to 520,833.94, 781,313.42 and 183,805

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Solution

The fourth proportional to 520,833.94, 781,313.42 and 183,805 is: 275,729.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,833.94 : 781,313.42 = 183,805 : x
  2. Step 2: Convert to fraction form
    520,833.94/781,313.42 = 183,805/x
  3. Step 3: Cross multiply
    520,833.94x = 781,313.42 × 183,805
  4. Step 4: Simplify right side
    520,833.94x = 143,609,313,163.10
  5. Step 5: Solve for x
    x = 143,609,313,163.10/520,833.94
  6. Step 6: Final answer
    x = 275,729.56

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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.