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Finding the Fourth Proportional to 594,692.26, 821,356.40 and 391,650.78

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Solution

The fourth proportional to 594,692.26, 821,356.40 and 391,650.78 is: 540,926.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,692.26 : 821,356.40 = 391,650.78 : x
  2. Step 2: Convert to fraction form
    594,692.26/821,356.40 = 391,650.78/x
  3. Step 3: Cross multiply
    594,692.26x = 821,356.40 × 391,650.78
  4. Step 4: Simplify right side
    594,692.26x = 321,684,874,717.99
  5. Step 5: Solve for x
    x = 321,684,874,717.99/594,692.26
  6. Step 6: Final answer
    x = 540,926.62

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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.