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Finding the Fourth Proportional to 517,626.99, 776,564.87 and 162,640.73

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Solution

The fourth proportional to 517,626.99, 776,564.87 and 162,640.73 is: 244,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,626.99 : 776,564.87 = 162,640.73 : x
  2. Step 2: Convert to fraction form
    517,626.99/776,564.87 = 162,640.73/x
  3. Step 3: Cross multiply
    517,626.99x = 776,564.87 × 162,640.73
  4. Step 4: Simplify right side
    517,626.99x = 126,301,078,477.36
  5. Step 5: Solve for x
    x = 126,301,078,477.36/517,626.99
  6. Step 6: Final answer
    x = 244,000.18

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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.