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Finding the Fourth Proportional to 518,533.80, 777,489.66 and 202,614.36

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Solution

The fourth proportional to 518,533.80, 777,489.66 and 202,614.36 is: 303,800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,533.80 : 777,489.66 = 202,614.36 : x
  2. Step 2: Convert to fraction form
    518,533.80/777,489.66 = 202,614.36/x
  3. Step 3: Cross multiply
    518,533.80x = 777,489.66 × 202,614.36
  4. Step 4: Simplify right side
    518,533.80x = 157,530,569,867.52
  5. Step 5: Solve for x
    x = 157,530,569,867.52/518,533.80
  6. Step 6: Final answer
    x = 303,800.00

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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.