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Finding the Fourth Proportional to 510,863.36, 766,295.22 and 211,014.38

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Solution

The fourth proportional to 510,863.36, 766,295.22 and 211,014.38 is: 316,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,863.36 : 766,295.22 = 211,014.38 : x
  2. Step 2: Convert to fraction form
    510,863.36/766,295.22 = 211,014.38/x
  3. Step 3: Cross multiply
    510,863.36x = 766,295.22 × 211,014.38
  4. Step 4: Simplify right side
    510,863.36x = 161,699,310,745.26
  5. Step 5: Solve for x
    x = 161,699,310,745.26/510,863.36
  6. Step 6: Final answer
    x = 316,521.64

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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.