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Finding the Fourth Proportional to 316,858.78, 437,265.06 and 173,624.20

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Solution

The fourth proportional to 316,858.78, 437,265.06 and 173,624.20 is: 239,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,858.78 : 437,265.06 = 173,624.20 : x
  2. Step 2: Convert to fraction form
    316,858.78/437,265.06 = 173,624.20/x
  3. Step 3: Cross multiply
    316,858.78x = 437,265.06 × 173,624.20
  4. Step 4: Simplify right side
    316,858.78x = 75,919,796,230.45
  5. Step 5: Solve for x
    x = 75,919,796,230.45/316,858.78
  6. Step 6: Final answer
    x = 239,601.37

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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.