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Finding the Fourth Proportional to 559,620.30, 839,122.65 and 382,327.50

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Solution

The fourth proportional to 559,620.30, 839,122.65 and 382,327.50 is: 573,280.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,620.30 : 839,122.65 = 382,327.50 : x
  2. Step 2: Convert to fraction form
    559,620.30/839,122.65 = 382,327.50/x
  3. Step 3: Cross multiply
    559,620.30x = 839,122.65 × 382,327.50
  4. Step 4: Simplify right side
    559,620.30x = 320,819,664,967.88
  5. Step 5: Solve for x
    x = 320,819,664,967.88/559,620.30
  6. Step 6: Final answer
    x = 573,280.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.