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Finding the Fourth Proportional to 322,395.80, 444,778.82 and 186,404.84

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Solution

The fourth proportional to 322,395.80, 444,778.82 and 186,404.84 is: 257,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,395.80 : 444,778.82 = 186,404.84 : x
  2. Step 2: Convert to fraction form
    322,395.80/444,778.82 = 186,404.84/x
  3. Step 3: Cross multiply
    322,395.80x = 444,778.82 × 186,404.84
  4. Step 4: Simplify right side
    322,395.80x = 82,908,924,777.49
  5. Step 5: Solve for x
    x = 82,908,924,777.49/322,395.80
  6. Step 6: Final answer
    x = 257,165.03

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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.