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Finding the Fourth Proportional to 351,483.30, 485,040.96 and 190,337.04

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Solution

The fourth proportional to 351,483.30, 485,040.96 and 190,337.04 is: 262,661.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,483.30 : 485,040.96 = 190,337.04 : x
  2. Step 2: Convert to fraction form
    351,483.30/485,040.96 = 190,337.04/x
  3. Step 3: Cross multiply
    351,483.30x = 485,040.96 × 190,337.04
  4. Step 4: Simplify right side
    351,483.30x = 92,321,260,605.16
  5. Step 5: Solve for x
    x = 92,321,260,605.16/351,483.30
  6. Step 6: Final answer
    x = 262,661.87

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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.