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Finding the Fourth Proportional to 594,490.98, 820,371.60 and 339,858.57

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Solution

The fourth proportional to 594,490.98, 820,371.60 and 339,858.57 is: 468,989.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,490.98 : 820,371.60 = 339,858.57 : x
  2. Step 2: Convert to fraction form
    594,490.98/820,371.60 = 339,858.57/x
  3. Step 3: Cross multiply
    594,490.98x = 820,371.60 × 339,858.57
  4. Step 4: Simplify right side
    594,490.98x = 278,810,318,844.61
  5. Step 5: Solve for x
    x = 278,810,318,844.61/594,490.98
  6. Step 6: Final answer
    x = 468,989.99

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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.