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Finding the Fourth Proportional to 316,747.44, 437,112.72 and 173,508.48

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Solution

The fourth proportional to 316,747.44, 437,112.72 and 173,508.48 is: 239,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,747.44 : 437,112.72 = 173,508.48 : x
  2. Step 2: Convert to fraction form
    316,747.44/437,112.72 = 173,508.48/x
  3. Step 3: Cross multiply
    316,747.44x = 437,112.72 × 173,508.48
  4. Step 4: Simplify right side
    316,747.44x = 75,842,763,635.87
  5. Step 5: Solve for x
    x = 75,842,763,635.87/316,747.44
  6. Step 6: Final answer
    x = 239,442.39

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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.