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Finding the Fourth Proportional to 316,922.54, 437,356.53 and 173,679.44

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Solution

The fourth proportional to 316,922.54, 437,356.53 and 173,679.44 is: 239,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,922.54 : 437,356.53 = 173,679.44 : x
  2. Step 2: Convert to fraction form
    316,922.54/437,356.53 = 173,679.44/x
  3. Step 3: Cross multiply
    316,922.54x = 437,356.53 × 173,679.44
  4. Step 4: Simplify right side
    316,922.54x = 75,959,835,023.96
  5. Step 5: Solve for x
    x = 75,959,835,023.96/316,922.54
  6. Step 6: Final answer
    x = 239,679.50

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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.