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Finding the Fourth Proportional to 494,643.60, 741,965.40 and 416,883.60

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Solution

The fourth proportional to 494,643.60, 741,965.40 and 416,883.60 is: 625,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,643.60 : 741,965.40 = 416,883.60 : x
  2. Step 2: Convert to fraction form
    494,643.60/741,965.40 = 416,883.60/x
  3. Step 3: Cross multiply
    494,643.60x = 741,965.40 × 416,883.60
  4. Step 4: Simplify right side
    494,643.60x = 309,313,207,027.44
  5. Step 5: Solve for x
    x = 309,313,207,027.44/494,643.60
  6. Step 6: Final answer
    x = 625,325.40

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Double scale
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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.