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Finding the Fourth Proportional to 517,796.64, 776,728.44 and 162,824.40

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Solution

The fourth proportional to 517,796.64, 776,728.44 and 162,824.40 is: 244,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,796.64 : 776,728.44 = 162,824.40 : x
  2. Step 2: Convert to fraction form
    517,796.64/776,728.44 = 162,824.40/x
  3. Step 3: Cross multiply
    517,796.64x = 776,728.44 × 162,824.40
  4. Step 4: Simplify right side
    517,796.64x = 126,470,342,205.94
  5. Step 5: Solve for x
    x = 126,470,342,205.94/517,796.64
  6. Step 6: Final answer
    x = 244,247.13

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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.