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Finding the Fourth Proportional to 318,692.01, 439,820.64 and 182,738.55

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Solution

The fourth proportional to 318,692.01, 439,820.64 and 182,738.55 is: 252,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,692.01 : 439,820.64 = 182,738.55 : x
  2. Step 2: Convert to fraction form
    318,692.01/439,820.64 = 182,738.55/x
  3. Step 3: Cross multiply
    318,692.01x = 439,820.64 × 182,738.55
  4. Step 4: Simplify right side
    318,692.01x = 80,372,186,013.67
  5. Step 5: Solve for x
    x = 80,372,186,013.67/318,692.01
  6. Step 6: Final answer
    x = 252,193.92

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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.