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Finding the Fourth Proportional to 517,762.80, 776,677.92 and 162,790.56

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Solution

The fourth proportional to 517,762.80, 776,677.92 and 162,790.56 is: 244,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,762.80 : 776,677.92 = 162,790.56 : x
  2. Step 2: Convert to fraction form
    517,762.80/776,677.92 = 162,790.56/x
  3. Step 3: Cross multiply
    517,762.80x = 776,677.92 × 162,790.56
  4. Step 4: Simplify right side
    517,762.80x = 126,435,833,536.44
  5. Step 5: Solve for x
    x = 126,435,833,536.44/517,762.80
  6. Step 6: Final answer
    x = 244,196.44

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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.