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Finding the Fourth Proportional to 318,520.99, 439,577.13 and 182,577.57

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Solution

The fourth proportional to 318,520.99, 439,577.13 and 182,577.57 is: 251,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,520.99 : 439,577.13 = 182,577.57 : x
  2. Step 2: Convert to fraction form
    318,520.99/439,577.13 = 182,577.57/x
  3. Step 3: Cross multiply
    318,520.99x = 439,577.13 × 182,577.57
  4. Step 4: Simplify right side
    318,520.99x = 80,256,924,222.97
  5. Step 5: Solve for x
    x = 80,256,924,222.97/318,520.99
  6. Step 6: Final answer
    x = 251,967.46

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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.