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Finding the Fourth Proportional to 647,437.98, 971,755.92 and 327,814.50

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Solution

The fourth proportional to 647,437.98, 971,755.92 and 327,814.50 is: 492,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,437.98 : 971,755.92 = 327,814.50 : x
  2. Step 2: Convert to fraction form
    647,437.98/971,755.92 = 327,814.50/x
  3. Step 3: Cross multiply
    647,437.98x = 971,755.92 × 327,814.50
  4. Step 4: Simplify right side
    647,437.98x = 318,555,681,036.84
  5. Step 5: Solve for x
    x = 318,555,681,036.84/647,437.98
  6. Step 6: Final answer
    x = 492,025.01

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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.