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Finding the Fourth Proportional to 655,367.11, 983,432.78 and 276,264.64

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Solution

The fourth proportional to 655,367.11, 983,432.78 and 276,264.64 is: 414,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,367.11 : 983,432.78 = 276,264.64 : x
  2. Step 2: Convert to fraction form
    655,367.11/983,432.78 = 276,264.64/x
  3. Step 3: Cross multiply
    655,367.11x = 983,432.78 × 276,264.64
  4. Step 4: Simplify right side
    655,367.11x = 271,687,702,930.90
  5. Step 5: Solve for x
    x = 271,687,702,930.90/655,367.11
  6. Step 6: Final answer
    x = 414,558.04

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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.