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Finding the Fourth Proportional to 501,915.68, 694,006.04 and 493,803.43

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Solution

The fourth proportional to 501,915.68, 694,006.04 and 493,803.43 is: 682,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,915.68 : 694,006.04 = 493,803.43 : x
  2. Step 2: Convert to fraction form
    501,915.68/694,006.04 = 493,803.43/x
  3. Step 3: Cross multiply
    501,915.68x = 694,006.04 × 493,803.43
  4. Step 4: Simplify right side
    501,915.68x = 342,702,562,992.72
  5. Step 5: Solve for x
    x = 342,702,562,992.72/501,915.68
  6. Step 6: Final answer
    x = 682,789.12

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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.