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Finding the Fourth Proportional to 664,513.57, 997,278.83 and 344,927.26

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Solution

The fourth proportional to 664,513.57, 997,278.83 and 344,927.26 is: 517,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,513.57 : 997,278.83 = 344,927.26 : x
  2. Step 2: Convert to fraction form
    664,513.57/997,278.83 = 344,927.26/x
  3. Step 3: Cross multiply
    664,513.57x = 997,278.83 × 344,927.26
  4. Step 4: Simplify right side
    664,513.57x = 343,988,647,576.88
  5. Step 5: Solve for x
    x = 343,988,647,576.88/664,513.57
  6. Step 6: Final answer
    x = 517,654.82

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1.5x scale

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.