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Finding the Fourth Proportional to 294,012.89, 405,755.48 and 173,234.66

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Solution

The fourth proportional to 294,012.89, 405,755.48 and 173,234.66 is: 239,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,012.89 : 405,755.48 = 173,234.66 : x
  2. Step 2: Convert to fraction form
    294,012.89/405,755.48 = 173,234.66/x
  3. Step 3: Cross multiply
    294,012.89x = 405,755.48 × 173,234.66
  4. Step 4: Simplify right side
    294,012.89x = 70,290,914,068.41
  5. Step 5: Solve for x
    x = 70,290,914,068.41/294,012.89
  6. Step 6: Final answer
    x = 239,074.26

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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.