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Finding the Fourth Proportional to 591,087.84, 815,702.12 and 336,439

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Solution

The fourth proportional to 591,087.84, 815,702.12 and 336,439 is: 464,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,087.84 : 815,702.12 = 336,439 : x
  2. Step 2: Convert to fraction form
    591,087.84/815,702.12 = 336,439/x
  3. Step 3: Cross multiply
    591,087.84x = 815,702.12 × 336,439
  4. Step 4: Simplify right side
    591,087.84x = 274,434,005,550.68
  5. Step 5: Solve for x
    x = 274,434,005,550.68/591,087.84
  6. Step 6: Final answer
    x = 464,286.33

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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.