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Finding the Fourth Proportional to 422,617.71, 633,693.29 and 173,474.67

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Solution

The fourth proportional to 422,617.71, 633,693.29 and 173,474.67 is: 260,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,617.71 : 633,693.29 = 173,474.67 : x
  2. Step 2: Convert to fraction form
    422,617.71/633,693.29 = 173,474.67/x
  3. Step 3: Cross multiply
    422,617.71x = 633,693.29 × 173,474.67
  4. Step 4: Simplify right side
    422,617.71x = 109,929,733,496.59
  5. Step 5: Solve for x
    x = 109,929,733,496.59/422,617.71
  6. Step 6: Final answer
    x = 260,116.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.