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Finding the Fourth Proportional to 316,524.56, 436,813.74 and 173,297.96

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Solution

The fourth proportional to 316,524.56, 436,813.74 and 173,297.96 is: 239,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,524.56 : 436,813.74 = 173,297.96 : x
  2. Step 2: Convert to fraction form
    316,524.56/436,813.74 = 173,297.96/x
  3. Step 3: Cross multiply
    316,524.56x = 436,813.74 × 173,297.96
  4. Step 4: Simplify right side
    316,524.56x = 75,698,930,041.97
  5. Step 5: Solve for x
    x = 75,698,930,041.97/316,524.56
  6. Step 6: Final answer
    x = 239,156.58

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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.