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Finding the Fourth Proportional to 644,566.32, 966,762 and 189,145.44

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Solution

The fourth proportional to 644,566.32, 966,762 and 189,145.44 is: 283,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,566.32 : 966,762 = 189,145.44 : x
  2. Step 2: Convert to fraction form
    644,566.32/966,762 = 189,145.44/x
  3. Step 3: Cross multiply
    644,566.32x = 966,762 × 189,145.44
  4. Step 4: Simplify right side
    644,566.32x = 182,858,623,865.28
  5. Step 5: Solve for x
    x = 182,858,623,865.28/644,566.32
  6. Step 6: Final answer
    x = 283,692.49

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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.