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Finding the Fourth Proportional to 317,517.96, 438,215.22 and 183,381.96

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Solution

The fourth proportional to 317,517.96, 438,215.22 and 183,381.96 is: 253,090.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,517.96 : 438,215.22 = 183,381.96 : x
  2. Step 2: Convert to fraction form
    317,517.96/438,215.22 = 183,381.96/x
  3. Step 3: Cross multiply
    317,517.96x = 438,215.22 × 183,381.96
  4. Step 4: Simplify right side
    317,517.96x = 80,360,765,945.43
  5. Step 5: Solve for x
    x = 80,360,765,945.43/317,517.96
  6. Step 6: Final answer
    x = 253,090.46

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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.