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Finding the Fourth Proportional to 472,992.72, 652,731.12 and 269,039.04

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Solution

The fourth proportional to 472,992.72, 652,731.12 and 269,039.04 is: 371,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,992.72 : 652,731.12 = 269,039.04 : x
  2. Step 2: Convert to fraction form
    472,992.72/652,731.12 = 269,039.04/x
  3. Step 3: Cross multiply
    472,992.72x = 652,731.12 × 269,039.04
  4. Step 4: Simplify right side
    472,992.72x = 175,610,153,902.93
  5. Step 5: Solve for x
    x = 175,610,153,902.93/472,992.72
  6. Step 6: Final answer
    x = 371,274.54

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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.