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Finding the Fourth Proportional to 262,992.80, 394,489.20 and 151,018.40

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Solution

The fourth proportional to 262,992.80, 394,489.20 and 151,018.40 is: 226,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,992.80 : 394,489.20 = 151,018.40 : x
  2. Step 2: Convert to fraction form
    262,992.80/394,489.20 = 151,018.40/x
  3. Step 3: Cross multiply
    262,992.80x = 394,489.20 × 151,018.40
  4. Step 4: Simplify right side
    262,992.80x = 59,575,127,801.28
  5. Step 5: Solve for x
    x = 59,575,127,801.28/262,992.80
  6. Step 6: Final answer
    x = 226,527.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.