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Finding the Fourth Proportional to 316,998.56, 437,458.12 and 173,759.58

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Solution

The fourth proportional to 316,998.56, 437,458.12 and 173,759.58 is: 239,788.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,998.56 : 437,458.12 = 173,759.58 : x
  2. Step 2: Convert to fraction form
    316,998.56/437,458.12 = 173,759.58/x
  3. Step 3: Cross multiply
    316,998.56x = 437,458.12 × 173,759.58
  4. Step 4: Simplify right side
    316,998.56x = 76,012,538,764.39
  5. Step 5: Solve for x
    x = 76,012,538,764.39/316,998.56
  6. Step 6: Final answer
    x = 239,788.28

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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.