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Finding the Fourth Proportional to 317,519.46, 438,217.29 and 183,383.46

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Solution

The fourth proportional to 317,519.46, 438,217.29 and 183,383.46 is: 253,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,519.46 : 438,217.29 = 183,383.46 : x
  2. Step 2: Convert to fraction form
    317,519.46/438,217.29 = 183,383.46/x
  3. Step 3: Cross multiply
    317,519.46x = 438,217.29 × 183,383.46
  4. Step 4: Simplify right side
    317,519.46x = 80,361,802,872.02
  5. Step 5: Solve for x
    x = 80,361,802,872.02/317,519.46
  6. Step 6: Final answer
    x = 253,092.53

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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.