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Finding the Fourth Proportional to 568,342.60, 784,311.30 and 313,692.04

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Solution

The fourth proportional to 568,342.60, 784,311.30 and 313,692.04 is: 432,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,342.60 : 784,311.30 = 313,692.04 : x
  2. Step 2: Convert to fraction form
    568,342.60/784,311.30 = 313,692.04/x
  3. Step 3: Cross multiply
    568,342.60x = 784,311.30 × 313,692.04
  4. Step 4: Simplify right side
    568,342.60x = 246,032,211,692.05
  5. Step 5: Solve for x
    x = 246,032,211,692.05/568,342.60
  6. Step 6: Final answer
    x = 432,894.19

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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.