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Finding the Fourth Proportional to 317,524.75, 438,189.81 and 174,298.12

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Solution

The fourth proportional to 317,524.75, 438,189.81 and 174,298.12 is: 240,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,524.75 : 438,189.81 = 174,298.12 : x
  2. Step 2: Convert to fraction form
    317,524.75/438,189.81 = 174,298.12/x
  3. Step 3: Cross multiply
    317,524.75x = 438,189.81 × 174,298.12
  4. Step 4: Simplify right side
    317,524.75x = 76,375,660,086.16
  5. Step 5: Solve for x
    x = 76,375,660,086.16/317,524.75
  6. Step 6: Final answer
    x = 240,534.51

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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.