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Finding the Fourth Proportional to 411,559.20, 617,338.80 and 366,944.40

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Solution

The fourth proportional to 411,559.20, 617,338.80 and 366,944.40 is: 550,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,559.20 : 617,338.80 = 366,944.40 : x
  2. Step 2: Convert to fraction form
    411,559.20/617,338.80 = 366,944.40/x
  3. Step 3: Cross multiply
    411,559.20x = 617,338.80 × 366,944.40
  4. Step 4: Simplify right side
    411,559.20x = 226,529,015,562.72
  5. Step 5: Solve for x
    x = 226,529,015,562.72/411,559.20
  6. Step 6: Final answer
    x = 550,416.60

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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.