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Finding the Fourth Proportional to 647,958.10, 971,937.15 and 368,022.10

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Solution

The fourth proportional to 647,958.10, 971,937.15 and 368,022.10 is: 552,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,958.10 : 971,937.15 = 368,022.10 : x
  2. Step 2: Convert to fraction form
    647,958.10/971,937.15 = 368,022.10/x
  3. Step 3: Cross multiply
    647,958.10x = 971,937.15 × 368,022.10
  4. Step 4: Simplify right side
    647,958.10x = 357,694,351,011.02
  5. Step 5: Solve for x
    x = 357,694,351,011.02/647,958.10
  6. Step 6: Final answer
    x = 552,033.15

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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.