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Finding the Fourth Proportional to 456,309.72, 629,551.44 and 274,953.42

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Solution

The fourth proportional to 456,309.72, 629,551.44 and 274,953.42 is: 379,341.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,309.72 : 629,551.44 = 274,953.42 : x
  2. Step 2: Convert to fraction form
    456,309.72/629,551.44 = 274,953.42/x
  3. Step 3: Cross multiply
    456,309.72x = 629,551.44 × 274,953.42
  4. Step 4: Simplify right side
    456,309.72x = 173,097,321,493.93
  5. Step 5: Solve for x
    x = 173,097,321,493.93/456,309.72
  6. Step 6: Final answer
    x = 379,341.74

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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.