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Finding the Fourth Proportional to 541,302.70, 811,954.05 and 512,272.30

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Solution

The fourth proportional to 541,302.70, 811,954.05 and 512,272.30 is: 768,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,302.70 : 811,954.05 = 512,272.30 : x
  2. Step 2: Convert to fraction form
    541,302.70/811,954.05 = 512,272.30/x
  3. Step 3: Cross multiply
    541,302.70x = 811,954.05 × 512,272.30
  4. Step 4: Simplify right side
    541,302.70x = 415,941,568,687.82
  5. Step 5: Solve for x
    x = 415,941,568,687.82/541,302.70
  6. Step 6: Final answer
    x = 768,408.45

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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.