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Finding the Fourth Proportional to 472,992.76, 652,611.90 and 303,456.52

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Solution

The fourth proportional to 472,992.76, 652,611.90 and 303,456.52 is: 418,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,992.76 : 652,611.90 = 303,456.52 : x
  2. Step 2: Convert to fraction form
    472,992.76/652,611.90 = 303,456.52/x
  3. Step 3: Cross multiply
    472,992.76x = 652,611.90 × 303,456.52
  4. Step 4: Simplify right side
    472,992.76x = 198,039,336,084.59
  5. Step 5: Solve for x
    x = 198,039,336,084.59/472,992.76
  6. Step 6: Final answer
    x = 418,694.22

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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.