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Finding the Fourth Proportional to 508,244.11, 701,371.93 and 278,790.56

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Solution

The fourth proportional to 508,244.11, 701,371.93 and 278,790.56 is: 384,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,244.11 : 701,371.93 = 278,790.56 : x
  2. Step 2: Convert to fraction form
    508,244.11/701,371.93 = 278,790.56/x
  3. Step 3: Cross multiply
    508,244.11x = 701,371.93 × 278,790.56
  4. Step 4: Simplify right side
    508,244.11x = 195,535,870,905.88
  5. Step 5: Solve for x
    x = 195,535,870,905.88/508,244.11
  6. Step 6: Final answer
    x = 384,728.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.