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Finding the Fourth Proportional to 317,996.20, 438,813.54 and 174,753.16

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Solution

The fourth proportional to 317,996.20, 438,813.54 and 174,753.16 is: 241,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,996.20 : 438,813.54 = 174,753.16 : x
  2. Step 2: Convert to fraction form
    317,996.20/438,813.54 = 174,753.16/x
  3. Step 3: Cross multiply
    317,996.20x = 438,813.54 × 174,753.16
  4. Step 4: Simplify right side
    317,996.20x = 76,684,052,765.79
  5. Step 5: Solve for x
    x = 76,684,052,765.79/317,996.20
  6. Step 6: Final answer
    x = 241,147.70

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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.