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Finding the Fourth Proportional to 487,524.72, 725,960.10 and 469,588.56

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Solution

The fourth proportional to 487,524.72, 725,960.10 and 469,588.56 is: 699,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,524.72 : 725,960.10 = 469,588.56 : x
  2. Step 2: Convert to fraction form
    487,524.72/725,960.10 = 469,588.56/x
  3. Step 3: Cross multiply
    487,524.72x = 725,960.10 × 469,588.56
  4. Step 4: Simplify right side
    487,524.72x = 340,902,557,976.46
  5. Step 5: Solve for x
    x = 340,902,557,976.46/487,524.72
  6. Step 6: Final answer
    x = 699,251.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.