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Finding the Fourth Proportional to 517,736.72, 776,703 and 202,173.68

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Solution

The fourth proportional to 517,736.72, 776,703 and 202,173.68 is: 303,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,736.72 : 776,703 = 202,173.68 : x
  2. Step 2: Convert to fraction form
    517,736.72/776,703 = 202,173.68/x
  3. Step 3: Cross multiply
    517,736.72x = 776,703 × 202,173.68
  4. Step 4: Simplify right side
    517,736.72x = 157,028,903,777.04
  5. Step 5: Solve for x
    x = 157,028,903,777.04/517,736.72
  6. Step 6: Final answer
    x = 303,298.76

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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.