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Finding the Fourth Proportional to 530,795.88, 796,448.76 and 331,065

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Solution

The fourth proportional to 530,795.88, 796,448.76 and 331,065 is: 496,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,795.88 : 796,448.76 = 331,065 : x
  2. Step 2: Convert to fraction form
    530,795.88/796,448.76 = 331,065/x
  3. Step 3: Cross multiply
    530,795.88x = 796,448.76 × 331,065
  4. Step 4: Simplify right side
    530,795.88x = 263,676,308,729.40
  5. Step 5: Solve for x
    x = 263,676,308,729.40/530,795.88
  6. Step 6: Final answer
    x = 496,756.51

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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.