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Finding the Fourth Proportional to 354,465.10, 531,211.65 and 227,716.30

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Solution

The fourth proportional to 354,465.10, 531,211.65 and 227,716.30 is: 341,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,465.10 : 531,211.65 = 227,716.30 : x
  2. Step 2: Convert to fraction form
    354,465.10/531,211.65 = 227,716.30/x
  3. Step 3: Cross multiply
    354,465.10x = 531,211.65 × 227,716.30
  4. Step 4: Simplify right side
    354,465.10x = 120,965,551,454.90
  5. Step 5: Solve for x
    x = 120,965,551,454.90/354,465.10
  6. Step 6: Final answer
    x = 341,262.23

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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.