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Finding the Fourth Proportional to 351,970.94, 486,120.84 and 238,596.86

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Solution

The fourth proportional to 351,970.94, 486,120.84 and 238,596.86 is: 329,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,970.94 : 486,120.84 = 238,596.86 : x
  2. Step 2: Convert to fraction form
    351,970.94/486,120.84 = 238,596.86/x
  3. Step 3: Cross multiply
    351,970.94x = 486,120.84 × 238,596.86
  4. Step 4: Simplify right side
    351,970.94x = 115,986,906,004.56
  5. Step 5: Solve for x
    x = 115,986,906,004.56/351,970.94
  6. Step 6: Final answer
    x = 329,535.46

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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.