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Finding the Fourth Proportional to 557,183.34, 769,241.18 and 339,474.17

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Solution

The fourth proportional to 557,183.34, 769,241.18 and 339,474.17 is: 468,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,183.34 : 769,241.18 = 339,474.17 : x
  2. Step 2: Convert to fraction form
    557,183.34/769,241.18 = 339,474.17/x
  3. Step 3: Cross multiply
    557,183.34x = 769,241.18 × 339,474.17
  4. Step 4: Simplify right side
    557,183.34x = 261,137,513,882.11
  5. Step 5: Solve for x
    x = 261,137,513,882.11/557,183.34
  6. Step 6: Final answer
    x = 468,674.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.