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Finding the Fourth Proportional to 293,555.60, 405,202.92 and 172,690.64

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Solution

The fourth proportional to 293,555.60, 405,202.92 and 172,690.64 is: 238,369.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,555.60 : 405,202.92 = 172,690.64 : x
  2. Step 2: Convert to fraction form
    293,555.60/405,202.92 = 172,690.64/x
  3. Step 3: Cross multiply
    293,555.60x = 405,202.92 × 172,690.64
  4. Step 4: Simplify right side
    293,555.60x = 69,974,751,584.67
  5. Step 5: Solve for x
    x = 69,974,751,584.67/293,555.60
  6. Step 6: Final answer
    x = 238,369.67

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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.