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Finding the Fourth Proportional to 496,369.60, 744,554.40 and 196,921.60

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Solution

The fourth proportional to 496,369.60, 744,554.40 and 196,921.60 is: 295,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,369.60 : 744,554.40 = 196,921.60 : x
  2. Step 2: Convert to fraction form
    496,369.60/744,554.40 = 196,921.60/x
  3. Step 3: Cross multiply
    496,369.60x = 744,554.40 × 196,921.60
  4. Step 4: Simplify right side
    496,369.60x = 146,618,843,735.04
  5. Step 5: Solve for x
    x = 146,618,843,735.04/496,369.60
  6. Step 6: Final answer
    x = 295,382.40

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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.