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Finding the Fourth Proportional to 512,600.34, 707,385.60 and 283,173.36

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Solution

The fourth proportional to 512,600.34, 707,385.60 and 283,173.36 is: 390,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,600.34 : 707,385.60 = 283,173.36 : x
  2. Step 2: Convert to fraction form
    512,600.34/707,385.60 = 283,173.36/x
  3. Step 3: Cross multiply
    512,600.34x = 707,385.60 × 283,173.36
  4. Step 4: Simplify right side
    512,600.34x = 200,312,757,167.62
  5. Step 5: Solve for x
    x = 200,312,757,167.62/512,600.34
  6. Step 6: Final answer
    x = 390,777.65

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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.