Home / 629,631.60-944,447.40-505,215.60

Finding the Fourth Proportional to 629,631.60, 944,447.40 and 505,215.60

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Solution

The fourth proportional to 629,631.60, 944,447.40 and 505,215.60 is: 757,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,631.60 : 944,447.40 = 505,215.60 : x
  2. Step 2: Convert to fraction form
    629,631.60/944,447.40 = 505,215.60/x
  3. Step 3: Cross multiply
    629,631.60x = 944,447.40 × 505,215.60
  4. Step 4: Simplify right side
    629,631.60x = 477,149,559,859.44
  5. Step 5: Solve for x
    x = 477,149,559,859.44/629,631.60
  6. Step 6: Final answer
    x = 757,823.40

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Half scale
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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.