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Finding the Fourth Proportional to 517,668.32, 776,507.28 and 162,674.48

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Solution

The fourth proportional to 517,668.32, 776,507.28 and 162,674.48 is: 244,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,668.32 : 776,507.28 = 162,674.48 : x
  2. Step 2: Convert to fraction form
    517,668.32/776,507.28 = 162,674.48/x
  3. Step 3: Cross multiply
    517,668.32x = 776,507.28 × 162,674.48
  4. Step 4: Simplify right side
    517,668.32x = 126,317,917,990.21
  5. Step 5: Solve for x
    x = 126,317,917,990.21/517,668.32
  6. Step 6: Final answer
    x = 244,013.23

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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.