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Finding the Fourth Proportional to 512,951.99, 707,910.40 and 283,504.34

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Solution

The fourth proportional to 512,951.99, 707,910.40 and 283,504.34 is: 391,256.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,951.99 : 707,910.40 = 283,504.34 : x
  2. Step 2: Convert to fraction form
    512,951.99/707,910.40 = 283,504.34/x
  3. Step 3: Cross multiply
    512,951.99x = 707,910.40 × 283,504.34
  4. Step 4: Simplify right side
    512,951.99x = 200,695,672,855.29
  5. Step 5: Solve for x
    x = 200,695,672,855.29/512,951.99
  6. Step 6: Final answer
    x = 391,256.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.