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Finding the Fourth Proportional to 644,675.76, 967,012.43 and 171,361.12

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Solution

The fourth proportional to 644,675.76, 967,012.43 and 171,361.12 is: 257,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,675.76 : 967,012.43 = 171,361.12 : x
  2. Step 2: Convert to fraction form
    644,675.76/967,012.43 = 171,361.12/x
  3. Step 3: Cross multiply
    644,675.76x = 967,012.43 × 171,361.12
  4. Step 4: Simplify right side
    644,675.76x = 165,708,331,597.53
  5. Step 5: Solve for x
    x = 165,708,331,597.53/644,675.76
  6. Step 6: Final answer
    x = 257,041.36

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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.