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Finding the Fourth Proportional to 603,131.04, 832,288.50 and 331,146

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Solution

The fourth proportional to 603,131.04, 832,288.50 and 331,146 is: 456,963.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,131.04 : 832,288.50 = 331,146 : x
  2. Step 2: Convert to fraction form
    603,131.04/832,288.50 = 331,146/x
  3. Step 3: Cross multiply
    603,131.04x = 832,288.50 × 331,146
  4. Step 4: Simplify right side
    603,131.04x = 275,609,007,621
  5. Step 5: Solve for x
    x = 275,609,007,621/603,131.04
  6. Step 6: Final answer
    x = 456,963.73

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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.