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Finding the Fourth Proportional to 497,718.80, 746,105.22 and 317,297.78

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Solution

The fourth proportional to 497,718.80, 746,105.22 and 317,297.78 is: 475,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,718.80 : 746,105.22 = 317,297.78 : x
  2. Step 2: Convert to fraction form
    497,718.80/746,105.22 = 317,297.78/x
  3. Step 3: Cross multiply
    497,718.80x = 746,105.22 × 317,297.78
  4. Step 4: Simplify right side
    497,718.80x = 236,737,529,952.41
  5. Step 5: Solve for x
    x = 236,737,529,952.41/497,718.80
  6. Step 6: Final answer
    x = 475,645.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.