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Finding the Fourth Proportional to 411,994.60, 617,991.90 and 329,050.60

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Solution

The fourth proportional to 411,994.60, 617,991.90 and 329,050.60 is: 493,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,994.60 : 617,991.90 = 329,050.60 : x
  2. Step 2: Convert to fraction form
    411,994.60/617,991.90 = 329,050.60/x
  3. Step 3: Cross multiply
    411,994.60x = 617,991.90 × 329,050.60
  4. Step 4: Simplify right side
    411,994.60x = 203,350,605,490.14
  5. Step 5: Solve for x
    x = 203,350,605,490.14/411,994.60
  6. Step 6: Final answer
    x = 493,575.90

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Similar ratio
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1.5x scale

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.