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Finding the Fourth Proportional to 318,007.71, 438,850.96 and 174,764.67

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Solution

The fourth proportional to 318,007.71, 438,850.96 and 174,764.67 is: 241,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,007.71 : 438,850.96 = 174,764.67 : x
  2. Step 2: Convert to fraction form
    318,007.71/438,850.96 = 174,764.67/x
  3. Step 3: Cross multiply
    318,007.71x = 438,850.96 × 174,764.67
  4. Step 4: Simplify right side
    318,007.71x = 76,695,643,203.58
  5. Step 5: Solve for x
    x = 76,695,643,203.58/318,007.71
  6. Step 6: Final answer
    x = 241,175.42

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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.