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Finding the Fourth Proportional to 361,996.02, 542,107.86 and 255,117.30

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Solution

The fourth proportional to 361,996.02, 542,107.86 and 255,117.30 is: 382,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,996.02 : 542,107.86 = 255,117.30 : x
  2. Step 2: Convert to fraction form
    361,996.02/542,107.86 = 255,117.30/x
  3. Step 3: Cross multiply
    361,996.02x = 542,107.86 × 255,117.30
  4. Step 4: Simplify right side
    361,996.02x = 138,301,093,551.98
  5. Step 5: Solve for x
    x = 138,301,093,551.98/361,996.02
  6. Step 6: Final answer
    x = 382,051.42

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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.