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Finding the Fourth Proportional to 472,635.05, 652,119.68 and 279,047.27

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Solution

The fourth proportional to 472,635.05, 652,119.68 and 279,047.27 is: 385,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,635.05 : 652,119.68 = 279,047.27 : x
  2. Step 2: Convert to fraction form
    472,635.05/652,119.68 = 279,047.27/x
  3. Step 3: Cross multiply
    472,635.05x = 652,119.68 × 279,047.27
  4. Step 4: Simplify right side
    472,635.05x = 181,972,218,745.19
  5. Step 5: Solve for x
    x = 181,972,218,745.19/472,635.05
  6. Step 6: Final answer
    x = 385,016.35

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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.