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Finding the Fourth Proportional to 594,432.56, 820,316.94 and 339,789.28

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Solution

The fourth proportional to 594,432.56, 820,316.94 and 339,789.28 is: 468,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,432.56 : 820,316.94 = 339,789.28 : x
  2. Step 2: Convert to fraction form
    594,432.56/820,316.94 = 339,789.28/x
  3. Step 3: Cross multiply
    594,432.56x = 820,316.94 × 339,789.28
  4. Step 4: Simplify right side
    594,432.56x = 278,734,902,414.40
  5. Step 5: Solve for x
    x = 278,734,902,414.40/594,432.56
  6. Step 6: Final answer
    x = 468,909.21

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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.